src/share/vm/c1/c1_LIR.cpp

Mon, 15 Apr 2013 17:17:11 +0200

author
roland
date
Mon, 15 Apr 2013 17:17:11 +0200
changeset 4947
acadb114c818
parent 4860
46f6f063b272
child 5290
87a6f2df28e2
permissions
-rw-r--r--

8011648: C1: optimized build is broken after 7153771
Summary: missing #ifdef ASSERT
Reviewed-by: kvn

     1 /*
     2  * Copyright (c) 2000, 2013, 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  */
    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"
    33 Register LIR_OprDesc::as_register() const {
    34   return FrameMap::cpu_rnr2reg(cpu_regnr());
    35 }
    37 Register LIR_OprDesc::as_register_lo() const {
    38   return FrameMap::cpu_rnr2reg(cpu_regnrLo());
    39 }
    41 Register LIR_OprDesc::as_register_hi() const {
    42   return FrameMap::cpu_rnr2reg(cpu_regnrHi());
    43 }
    45 #if defined(X86)
    47 XMMRegister LIR_OprDesc::as_xmm_float_reg() const {
    48   return FrameMap::nr2xmmreg(xmm_regnr());
    49 }
    51 XMMRegister LIR_OprDesc::as_xmm_double_reg() const {
    52   assert(xmm_regnrLo() == xmm_regnrHi(), "assumed in calculation");
    53   return FrameMap::nr2xmmreg(xmm_regnrLo());
    54 }
    56 #endif // X86
    58 #if defined(SPARC) || defined(PPC)
    60 FloatRegister LIR_OprDesc::as_float_reg() const {
    61   return FrameMap::nr2floatreg(fpu_regnr());
    62 }
    64 FloatRegister LIR_OprDesc::as_double_reg() const {
    65   return FrameMap::nr2floatreg(fpu_regnrHi());
    66 }
    68 #endif
    70 #ifdef ARM
    72 FloatRegister LIR_OprDesc::as_float_reg() const {
    73   return as_FloatRegister(fpu_regnr());
    74 }
    76 FloatRegister LIR_OprDesc::as_double_reg() const {
    77   return as_FloatRegister(fpu_regnrLo());
    78 }
    80 #endif
    83 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
    85 LIR_Opr LIR_OprFact::value_type(ValueType* type) {
    86   ValueTag tag = type->tag();
    87   switch (tag) {
    88   case metaDataTag : {
    89     ClassConstant* c = type->as_ClassConstant();
    90     if (c != NULL && !c->value()->is_loaded()) {
    91       return LIR_OprFact::metadataConst(NULL);
    92     } else if (c != NULL) {
    93       return LIR_OprFact::metadataConst(c->value()->constant_encoding());
    94     } else {
    95       MethodConstant* m = type->as_MethodConstant();
    96       assert (m != NULL, "not a class or a method?");
    97       return LIR_OprFact::metadataConst(m->value()->constant_encoding());
    98     }
    99   }
   100   case objectTag : {
   101       return LIR_OprFact::oopConst(type->as_ObjectType()->encoding());
   102     }
   103   case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value());
   104   case intTag    : return LIR_OprFact::intConst(type->as_IntConstant()->value());
   105   case floatTag  : return LIR_OprFact::floatConst(type->as_FloatConstant()->value());
   106   case longTag   : return LIR_OprFact::longConst(type->as_LongConstant()->value());
   107   case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value());
   108   default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
   109   }
   110 }
   113 LIR_Opr LIR_OprFact::dummy_value_type(ValueType* type) {
   114   switch (type->tag()) {
   115     case objectTag: return LIR_OprFact::oopConst(NULL);
   116     case addressTag:return LIR_OprFact::addressConst(0);
   117     case intTag:    return LIR_OprFact::intConst(0);
   118     case floatTag:  return LIR_OprFact::floatConst(0.0);
   119     case longTag:   return LIR_OprFact::longConst(0);
   120     case doubleTag: return LIR_OprFact::doubleConst(0.0);
   121     default:        ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
   122   }
   123   return illegalOpr;
   124 }
   128 //---------------------------------------------------
   131 LIR_Address::Scale LIR_Address::scale(BasicType type) {
   132   int elem_size = type2aelembytes(type);
   133   switch (elem_size) {
   134   case 1: return LIR_Address::times_1;
   135   case 2: return LIR_Address::times_2;
   136   case 4: return LIR_Address::times_4;
   137   case 8: return LIR_Address::times_8;
   138   }
   139   ShouldNotReachHere();
   140   return LIR_Address::times_1;
   141 }
   144 #ifndef PRODUCT
   145 void LIR_Address::verify() const {
   146 #if defined(SPARC) || defined(PPC)
   147   assert(scale() == times_1, "Scaled addressing mode not available on SPARC/PPC and should not be used");
   148   assert(disp() == 0 || index()->is_illegal(), "can't have both");
   149 #endif
   150 #ifdef ARM
   151   assert(disp() == 0 || index()->is_illegal(), "can't have both");
   152   // Note: offsets higher than 4096 must not be rejected here. They can
   153   // be handled by the back-end or will be rejected if not.
   154 #endif
   155 #ifdef _LP64
   156   assert(base()->is_cpu_register(), "wrong base operand");
   157   assert(index()->is_illegal() || index()->is_double_cpu(), "wrong index operand");
   158   assert(base()->type() == T_OBJECT || base()->type() == T_LONG || base()->type() == T_METADATA,
   159          "wrong type for addresses");
   160 #else
   161   assert(base()->is_single_cpu(), "wrong base operand");
   162   assert(index()->is_illegal() || index()->is_single_cpu(), "wrong index operand");
   163   assert(base()->type() == T_OBJECT || base()->type() == T_INT || base()->type() == T_METADATA,
   164          "wrong type for addresses");
   165 #endif
   166 }
   167 #endif
   170 //---------------------------------------------------
   172 char LIR_OprDesc::type_char(BasicType t) {
   173   switch (t) {
   174     case T_ARRAY:
   175       t = T_OBJECT;
   176     case T_BOOLEAN:
   177     case T_CHAR:
   178     case T_FLOAT:
   179     case T_DOUBLE:
   180     case T_BYTE:
   181     case T_SHORT:
   182     case T_INT:
   183     case T_LONG:
   184     case T_OBJECT:
   185     case T_ADDRESS:
   186     case T_METADATA:
   187     case T_VOID:
   188       return ::type2char(t);
   190     case T_ILLEGAL:
   191       return '?';
   193     default:
   194       ShouldNotReachHere();
   195       return '?';
   196   }
   197 }
   199 #ifndef PRODUCT
   200 void LIR_OprDesc::validate_type() const {
   202 #ifdef ASSERT
   203   if (!is_pointer() && !is_illegal()) {
   204     switch (as_BasicType(type_field())) {
   205     case T_LONG:
   206       assert((kind_field() == cpu_register || kind_field() == stack_value) &&
   207              size_field() == double_size, "must match");
   208       break;
   209     case T_FLOAT:
   210       // FP return values can be also in CPU registers on ARM and PPC (softfp ABI)
   211       assert((kind_field() == fpu_register || kind_field() == stack_value
   212              ARM_ONLY(|| kind_field() == cpu_register)
   213              PPC_ONLY(|| kind_field() == cpu_register) ) &&
   214              size_field() == single_size, "must match");
   215       break;
   216     case T_DOUBLE:
   217       // FP return values can be also in CPU registers on ARM and PPC (softfp ABI)
   218       assert((kind_field() == fpu_register || kind_field() == stack_value
   219              ARM_ONLY(|| kind_field() == cpu_register)
   220              PPC_ONLY(|| kind_field() == cpu_register) ) &&
   221              size_field() == double_size, "must match");
   222       break;
   223     case T_BOOLEAN:
   224     case T_CHAR:
   225     case T_BYTE:
   226     case T_SHORT:
   227     case T_INT:
   228     case T_ADDRESS:
   229     case T_OBJECT:
   230     case T_METADATA:
   231     case T_ARRAY:
   232       assert((kind_field() == cpu_register || kind_field() == stack_value) &&
   233              size_field() == single_size, "must match");
   234       break;
   236     case T_ILLEGAL:
   237       // XXX TKR also means unknown right now
   238       // assert(is_illegal(), "must match");
   239       break;
   241     default:
   242       ShouldNotReachHere();
   243     }
   244   }
   245 #endif
   247 }
   248 #endif // PRODUCT
   251 bool LIR_OprDesc::is_oop() const {
   252   if (is_pointer()) {
   253     return pointer()->is_oop_pointer();
   254   } else {
   255     OprType t= type_field();
   256     assert(t != unknown_type, "not set");
   257     return t == object_type;
   258   }
   259 }
   263 void LIR_Op2::verify() const {
   264 #ifdef ASSERT
   265   switch (code()) {
   266     case lir_cmove:
   267     case lir_xchg:
   268       break;
   270     default:
   271       assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
   272              "can't produce oops from arith");
   273   }
   275   if (TwoOperandLIRForm) {
   276     switch (code()) {
   277     case lir_add:
   278     case lir_sub:
   279     case lir_mul:
   280     case lir_mul_strictfp:
   281     case lir_div:
   282     case lir_div_strictfp:
   283     case lir_rem:
   284     case lir_logic_and:
   285     case lir_logic_or:
   286     case lir_logic_xor:
   287     case lir_shl:
   288     case lir_shr:
   289       assert(in_opr1() == result_opr(), "opr1 and result must match");
   290       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
   291       break;
   293     // special handling for lir_ushr because of write barriers
   294     case lir_ushr:
   295       assert(in_opr1() == result_opr() || in_opr2()->is_constant(), "opr1 and result must match or shift count is constant");
   296       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
   297       break;
   299     }
   300   }
   301 #endif
   302 }
   305 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block)
   306   : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
   307   , _cond(cond)
   308   , _type(type)
   309   , _label(block->label())
   310   , _block(block)
   311   , _ublock(NULL)
   312   , _stub(NULL) {
   313 }
   315 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub) :
   316   LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
   317   , _cond(cond)
   318   , _type(type)
   319   , _label(stub->entry())
   320   , _block(NULL)
   321   , _ublock(NULL)
   322   , _stub(stub) {
   323 }
   325 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock)
   326   : LIR_Op(lir_cond_float_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
   327   , _cond(cond)
   328   , _type(type)
   329   , _label(block->label())
   330   , _block(block)
   331   , _ublock(ublock)
   332   , _stub(NULL)
   333 {
   334 }
   336 void LIR_OpBranch::change_block(BlockBegin* b) {
   337   assert(_block != NULL, "must have old block");
   338   assert(_block->label() == label(), "must be equal");
   340   _block = b;
   341   _label = b->label();
   342 }
   344 void LIR_OpBranch::change_ublock(BlockBegin* b) {
   345   assert(_ublock != NULL, "must have old block");
   346   _ublock = b;
   347 }
   349 void LIR_OpBranch::negate_cond() {
   350   switch (_cond) {
   351     case lir_cond_equal:        _cond = lir_cond_notEqual;     break;
   352     case lir_cond_notEqual:     _cond = lir_cond_equal;        break;
   353     case lir_cond_less:         _cond = lir_cond_greaterEqual; break;
   354     case lir_cond_lessEqual:    _cond = lir_cond_greater;      break;
   355     case lir_cond_greaterEqual: _cond = lir_cond_less;         break;
   356     case lir_cond_greater:      _cond = lir_cond_lessEqual;    break;
   357     default: ShouldNotReachHere();
   358   }
   359 }
   362 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
   363                                  LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
   364                                  bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
   365                                  CodeStub* stub)
   367   : LIR_Op(code, result, NULL)
   368   , _object(object)
   369   , _array(LIR_OprFact::illegalOpr)
   370   , _klass(klass)
   371   , _tmp1(tmp1)
   372   , _tmp2(tmp2)
   373   , _tmp3(tmp3)
   374   , _fast_check(fast_check)
   375   , _stub(stub)
   376   , _info_for_patch(info_for_patch)
   377   , _info_for_exception(info_for_exception)
   378   , _profiled_method(NULL)
   379   , _profiled_bci(-1)
   380   , _should_profile(false)
   381 {
   382   if (code == lir_checkcast) {
   383     assert(info_for_exception != NULL, "checkcast throws exceptions");
   384   } else if (code == lir_instanceof) {
   385     assert(info_for_exception == NULL, "instanceof throws no exceptions");
   386   } else {
   387     ShouldNotReachHere();
   388   }
   389 }
   393 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)
   394   : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
   395   , _object(object)
   396   , _array(array)
   397   , _klass(NULL)
   398   , _tmp1(tmp1)
   399   , _tmp2(tmp2)
   400   , _tmp3(tmp3)
   401   , _fast_check(false)
   402   , _stub(NULL)
   403   , _info_for_patch(NULL)
   404   , _info_for_exception(info_for_exception)
   405   , _profiled_method(NULL)
   406   , _profiled_bci(-1)
   407   , _should_profile(false)
   408 {
   409   if (code == lir_store_check) {
   410     _stub = new ArrayStoreExceptionStub(object, info_for_exception);
   411     assert(info_for_exception != NULL, "store_check throws exceptions");
   412   } else {
   413     ShouldNotReachHere();
   414   }
   415 }
   418 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
   419                                  LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
   420   : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
   421   , _tmp(tmp)
   422   , _src(src)
   423   , _src_pos(src_pos)
   424   , _dst(dst)
   425   , _dst_pos(dst_pos)
   426   , _flags(flags)
   427   , _expected_type(expected_type)
   428   , _length(length) {
   429   _stub = new ArrayCopyStub(this);
   430 }
   433 //-------------------verify--------------------------
   435 void LIR_Op1::verify() const {
   436   switch(code()) {
   437   case lir_move:
   438     assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
   439     break;
   440   case lir_null_check:
   441     assert(in_opr()->is_register(), "must be");
   442     break;
   443   case lir_return:
   444     assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
   445     break;
   446   }
   447 }
   449 void LIR_OpRTCall::verify() const {
   450   assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
   451 }
   453 //-------------------visits--------------------------
   455 // complete rework of LIR instruction visitor.
   456 // The virtual calls for each instruction type is replaced by a big
   457 // switch that adds the operands for each instruction
   459 void LIR_OpVisitState::visit(LIR_Op* op) {
   460   // copy information from the LIR_Op
   461   reset();
   462   set_op(op);
   464   switch (op->code()) {
   466 // LIR_Op0
   467     case lir_word_align:               // result and info always invalid
   468     case lir_backwardbranch_target:    // result and info always invalid
   469     case lir_build_frame:              // result and info always invalid
   470     case lir_fpop_raw:                 // result and info always invalid
   471     case lir_24bit_FPU:                // result and info always invalid
   472     case lir_reset_FPU:                // result and info always invalid
   473     case lir_breakpoint:               // result and info always invalid
   474     case lir_membar:                   // result and info always invalid
   475     case lir_membar_acquire:           // result and info always invalid
   476     case lir_membar_release:           // result and info always invalid
   477     case lir_membar_loadload:          // result and info always invalid
   478     case lir_membar_storestore:        // result and info always invalid
   479     case lir_membar_loadstore:         // result and info always invalid
   480     case lir_membar_storeload:         // result and info always invalid
   481     {
   482       assert(op->as_Op0() != NULL, "must be");
   483       assert(op->_info == NULL, "info not used by this instruction");
   484       assert(op->_result->is_illegal(), "not used");
   485       break;
   486     }
   488     case lir_nop:                      // may have info, result always invalid
   489     case lir_std_entry:                // may have result, info always invalid
   490     case lir_osr_entry:                // may have result, info always invalid
   491     case lir_get_thread:               // may have result, info always invalid
   492     {
   493       assert(op->as_Op0() != NULL, "must be");
   494       if (op->_info != NULL)           do_info(op->_info);
   495       if (op->_result->is_valid())     do_output(op->_result);
   496       break;
   497     }
   500 // LIR_OpLabel
   501     case lir_label:                    // result and info always invalid
   502     {
   503       assert(op->as_OpLabel() != NULL, "must be");
   504       assert(op->_info == NULL, "info not used by this instruction");
   505       assert(op->_result->is_illegal(), "not used");
   506       break;
   507     }
   510 // LIR_Op1
   511     case lir_fxch:           // input always valid, result and info always invalid
   512     case lir_fld:            // input always valid, result and info always invalid
   513     case lir_ffree:          // input always valid, result and info always invalid
   514     case lir_push:           // input always valid, result and info always invalid
   515     case lir_pop:            // input always valid, result and info always invalid
   516     case lir_return:         // input always valid, result and info always invalid
   517     case lir_leal:           // input and result always valid, info always invalid
   518     case lir_neg:            // input and result always valid, info always invalid
   519     case lir_monaddr:        // input and result always valid, info always invalid
   520     case lir_null_check:     // input and info always valid, result always invalid
   521     case lir_move:           // input and result always valid, may have info
   522     case lir_pack64:         // input and result always valid
   523     case lir_unpack64:       // input and result always valid
   524     case lir_prefetchr:      // input always valid, result and info always invalid
   525     case lir_prefetchw:      // input always valid, result and info always invalid
   526     {
   527       assert(op->as_Op1() != NULL, "must be");
   528       LIR_Op1* op1 = (LIR_Op1*)op;
   530       if (op1->_info)                  do_info(op1->_info);
   531       if (op1->_opr->is_valid())       do_input(op1->_opr);
   532       if (op1->_result->is_valid())    do_output(op1->_result);
   534       break;
   535     }
   537     case lir_safepoint:
   538     {
   539       assert(op->as_Op1() != NULL, "must be");
   540       LIR_Op1* op1 = (LIR_Op1*)op;
   542       assert(op1->_info != NULL, "");  do_info(op1->_info);
   543       if (op1->_opr->is_valid())       do_temp(op1->_opr); // safepoints on SPARC need temporary register
   544       assert(op1->_result->is_illegal(), "safepoint does not produce value");
   546       break;
   547     }
   549 // LIR_OpConvert;
   550     case lir_convert:        // input and result always valid, info always invalid
   551     {
   552       assert(op->as_OpConvert() != NULL, "must be");
   553       LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
   555       assert(opConvert->_info == NULL, "must be");
   556       if (opConvert->_opr->is_valid())       do_input(opConvert->_opr);
   557       if (opConvert->_result->is_valid())    do_output(opConvert->_result);
   558 #ifdef PPC
   559       if (opConvert->_tmp1->is_valid())      do_temp(opConvert->_tmp1);
   560       if (opConvert->_tmp2->is_valid())      do_temp(opConvert->_tmp2);
   561 #endif
   562       do_stub(opConvert->_stub);
   564       break;
   565     }
   567 // LIR_OpBranch;
   568     case lir_branch:                   // may have info, input and result register always invalid
   569     case lir_cond_float_branch:        // may have info, input and result register always invalid
   570     {
   571       assert(op->as_OpBranch() != NULL, "must be");
   572       LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
   574       if (opBranch->_info != NULL)     do_info(opBranch->_info);
   575       assert(opBranch->_result->is_illegal(), "not used");
   576       if (opBranch->_stub != NULL)     opBranch->stub()->visit(this);
   578       break;
   579     }
   582 // LIR_OpAllocObj
   583     case lir_alloc_object:
   584     {
   585       assert(op->as_OpAllocObj() != NULL, "must be");
   586       LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
   588       if (opAllocObj->_info)                     do_info(opAllocObj->_info);
   589       if (opAllocObj->_opr->is_valid()) {        do_input(opAllocObj->_opr);
   590                                                  do_temp(opAllocObj->_opr);
   591                                         }
   592       if (opAllocObj->_tmp1->is_valid())         do_temp(opAllocObj->_tmp1);
   593       if (opAllocObj->_tmp2->is_valid())         do_temp(opAllocObj->_tmp2);
   594       if (opAllocObj->_tmp3->is_valid())         do_temp(opAllocObj->_tmp3);
   595       if (opAllocObj->_tmp4->is_valid())         do_temp(opAllocObj->_tmp4);
   596       if (opAllocObj->_result->is_valid())       do_output(opAllocObj->_result);
   597                                                  do_stub(opAllocObj->_stub);
   598       break;
   599     }
   602 // LIR_OpRoundFP;
   603     case lir_roundfp: {
   604       assert(op->as_OpRoundFP() != NULL, "must be");
   605       LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
   607       assert(op->_info == NULL, "info not used by this instruction");
   608       assert(opRoundFP->_tmp->is_illegal(), "not used");
   609       do_input(opRoundFP->_opr);
   610       do_output(opRoundFP->_result);
   612       break;
   613     }
   616 // LIR_Op2
   617     case lir_cmp:
   618     case lir_cmp_l2i:
   619     case lir_ucmp_fd2i:
   620     case lir_cmp_fd2i:
   621     case lir_add:
   622     case lir_sub:
   623     case lir_mul:
   624     case lir_div:
   625     case lir_rem:
   626     case lir_sqrt:
   627     case lir_abs:
   628     case lir_logic_and:
   629     case lir_logic_or:
   630     case lir_logic_xor:
   631     case lir_shl:
   632     case lir_shr:
   633     case lir_ushr:
   634     case lir_xadd:
   635     case lir_xchg:
   636     case lir_assert:
   637     {
   638       assert(op->as_Op2() != NULL, "must be");
   639       LIR_Op2* op2 = (LIR_Op2*)op;
   640       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
   641              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
   643       if (op2->_info)                     do_info(op2->_info);
   644       if (op2->_opr1->is_valid())         do_input(op2->_opr1);
   645       if (op2->_opr2->is_valid())         do_input(op2->_opr2);
   646       if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
   647       if (op2->_result->is_valid())       do_output(op2->_result);
   648       if (op->code() == lir_xchg || op->code() == lir_xadd) {
   649         // on ARM and PPC, return value is loaded first so could
   650         // destroy inputs. On other platforms that implement those
   651         // (x86, sparc), the extra constrainsts are harmless.
   652         if (op2->_opr1->is_valid())       do_temp(op2->_opr1);
   653         if (op2->_opr2->is_valid())       do_temp(op2->_opr2);
   654       }
   656       break;
   657     }
   659     // special handling for cmove: right input operand must not be equal
   660     // to the result operand, otherwise the backend fails
   661     case lir_cmove:
   662     {
   663       assert(op->as_Op2() != NULL, "must be");
   664       LIR_Op2* op2 = (LIR_Op2*)op;
   666       assert(op2->_info == NULL && op2->_tmp1->is_illegal() && op2->_tmp2->is_illegal() &&
   667              op2->_tmp3->is_illegal() && op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
   668       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
   670       do_input(op2->_opr1);
   671       do_input(op2->_opr2);
   672       do_temp(op2->_opr2);
   673       do_output(op2->_result);
   675       break;
   676     }
   678     // vspecial handling for strict operations: register input operands
   679     // as temp to guarantee that they do not overlap with other
   680     // registers
   681     case lir_mul_strictfp:
   682     case lir_div_strictfp:
   683     {
   684       assert(op->as_Op2() != NULL, "must be");
   685       LIR_Op2* op2 = (LIR_Op2*)op;
   687       assert(op2->_info == NULL, "not used");
   688       assert(op2->_opr1->is_valid(), "used");
   689       assert(op2->_opr2->is_valid(), "used");
   690       assert(op2->_result->is_valid(), "used");
   691       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
   692              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
   694       do_input(op2->_opr1); do_temp(op2->_opr1);
   695       do_input(op2->_opr2); do_temp(op2->_opr2);
   696       if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
   697       do_output(op2->_result);
   699       break;
   700     }
   702     case lir_throw: {
   703       assert(op->as_Op2() != NULL, "must be");
   704       LIR_Op2* op2 = (LIR_Op2*)op;
   706       if (op2->_info)                     do_info(op2->_info);
   707       if (op2->_opr1->is_valid())         do_temp(op2->_opr1);
   708       if (op2->_opr2->is_valid())         do_input(op2->_opr2); // exception object is input parameter
   709       assert(op2->_result->is_illegal(), "no result");
   710       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
   711              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
   713       break;
   714     }
   716     case lir_unwind: {
   717       assert(op->as_Op1() != NULL, "must be");
   718       LIR_Op1* op1 = (LIR_Op1*)op;
   720       assert(op1->_info == NULL, "no info");
   721       assert(op1->_opr->is_valid(), "exception oop");         do_input(op1->_opr);
   722       assert(op1->_result->is_illegal(), "no result");
   724       break;
   725     }
   728     case lir_tan:
   729     case lir_sin:
   730     case lir_cos:
   731     case lir_log:
   732     case lir_log10:
   733     case lir_exp: {
   734       assert(op->as_Op2() != NULL, "must be");
   735       LIR_Op2* op2 = (LIR_Op2*)op;
   737       // On x86 tan/sin/cos need two temporary fpu stack slots and
   738       // log/log10 need one so handle opr2 and tmp as temp inputs.
   739       // Register input operand as temp to guarantee that it doesn't
   740       // overlap with the input.
   741       assert(op2->_info == NULL, "not used");
   742       assert(op2->_tmp5->is_illegal(), "not used");
   743       assert(op2->_tmp2->is_valid() == (op->code() == lir_exp), "not used");
   744       assert(op2->_tmp3->is_valid() == (op->code() == lir_exp), "not used");
   745       assert(op2->_tmp4->is_valid() == (op->code() == lir_exp), "not used");
   746       assert(op2->_opr1->is_valid(), "used");
   747       do_input(op2->_opr1); do_temp(op2->_opr1);
   749       if (op2->_opr2->is_valid())         do_temp(op2->_opr2);
   750       if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
   751       if (op2->_tmp2->is_valid())         do_temp(op2->_tmp2);
   752       if (op2->_tmp3->is_valid())         do_temp(op2->_tmp3);
   753       if (op2->_tmp4->is_valid())         do_temp(op2->_tmp4);
   754       if (op2->_result->is_valid())       do_output(op2->_result);
   756       break;
   757     }
   759     case lir_pow: {
   760       assert(op->as_Op2() != NULL, "must be");
   761       LIR_Op2* op2 = (LIR_Op2*)op;
   763       // On x86 pow needs two temporary fpu stack slots: tmp1 and
   764       // tmp2. Register input operands as temps to guarantee that it
   765       // doesn't overlap with the temporary slots.
   766       assert(op2->_info == NULL, "not used");
   767       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid(), "used");
   768       assert(op2->_tmp1->is_valid() && op2->_tmp2->is_valid() && op2->_tmp3->is_valid()
   769              && op2->_tmp4->is_valid() && op2->_tmp5->is_valid(), "used");
   770       assert(op2->_result->is_valid(), "used");
   772       do_input(op2->_opr1); do_temp(op2->_opr1);
   773       do_input(op2->_opr2); do_temp(op2->_opr2);
   774       do_temp(op2->_tmp1);
   775       do_temp(op2->_tmp2);
   776       do_temp(op2->_tmp3);
   777       do_temp(op2->_tmp4);
   778       do_temp(op2->_tmp5);
   779       do_output(op2->_result);
   781       break;
   782     }
   784 // LIR_Op3
   785     case lir_idiv:
   786     case lir_irem: {
   787       assert(op->as_Op3() != NULL, "must be");
   788       LIR_Op3* op3= (LIR_Op3*)op;
   790       if (op3->_info)                     do_info(op3->_info);
   791       if (op3->_opr1->is_valid())         do_input(op3->_opr1);
   793       // second operand is input and temp, so ensure that second operand
   794       // and third operand get not the same register
   795       if (op3->_opr2->is_valid())         do_input(op3->_opr2);
   796       if (op3->_opr2->is_valid())         do_temp(op3->_opr2);
   797       if (op3->_opr3->is_valid())         do_temp(op3->_opr3);
   799       if (op3->_result->is_valid())       do_output(op3->_result);
   801       break;
   802     }
   805 // LIR_OpJavaCall
   806     case lir_static_call:
   807     case lir_optvirtual_call:
   808     case lir_icvirtual_call:
   809     case lir_virtual_call:
   810     case lir_dynamic_call: {
   811       LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
   812       assert(opJavaCall != NULL, "must be");
   814       if (opJavaCall->_receiver->is_valid())     do_input(opJavaCall->_receiver);
   816       // only visit register parameters
   817       int n = opJavaCall->_arguments->length();
   818       for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
   819         if (!opJavaCall->_arguments->at(i)->is_pointer()) {
   820           do_input(*opJavaCall->_arguments->adr_at(i));
   821         }
   822       }
   824       if (opJavaCall->_info)                     do_info(opJavaCall->_info);
   825       if (opJavaCall->is_method_handle_invoke()) {
   826         opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
   827         do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
   828       }
   829       do_call();
   830       if (opJavaCall->_result->is_valid())       do_output(opJavaCall->_result);
   832       break;
   833     }
   836 // LIR_OpRTCall
   837     case lir_rtcall: {
   838       assert(op->as_OpRTCall() != NULL, "must be");
   839       LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
   841       // only visit register parameters
   842       int n = opRTCall->_arguments->length();
   843       for (int i = 0; i < n; i++) {
   844         if (!opRTCall->_arguments->at(i)->is_pointer()) {
   845           do_input(*opRTCall->_arguments->adr_at(i));
   846         }
   847       }
   848       if (opRTCall->_info)                     do_info(opRTCall->_info);
   849       if (opRTCall->_tmp->is_valid())          do_temp(opRTCall->_tmp);
   850       do_call();
   851       if (opRTCall->_result->is_valid())       do_output(opRTCall->_result);
   853       break;
   854     }
   857 // LIR_OpArrayCopy
   858     case lir_arraycopy: {
   859       assert(op->as_OpArrayCopy() != NULL, "must be");
   860       LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
   862       assert(opArrayCopy->_result->is_illegal(), "unused");
   863       assert(opArrayCopy->_src->is_valid(), "used");          do_input(opArrayCopy->_src);     do_temp(opArrayCopy->_src);
   864       assert(opArrayCopy->_src_pos->is_valid(), "used");      do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
   865       assert(opArrayCopy->_dst->is_valid(), "used");          do_input(opArrayCopy->_dst);     do_temp(opArrayCopy->_dst);
   866       assert(opArrayCopy->_dst_pos->is_valid(), "used");      do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
   867       assert(opArrayCopy->_length->is_valid(), "used");       do_input(opArrayCopy->_length);  do_temp(opArrayCopy->_length);
   868       assert(opArrayCopy->_tmp->is_valid(), "used");          do_temp(opArrayCopy->_tmp);
   869       if (opArrayCopy->_info)                     do_info(opArrayCopy->_info);
   871       // the implementation of arraycopy always has a call into the runtime
   872       do_call();
   874       break;
   875     }
   878 // LIR_OpLock
   879     case lir_lock:
   880     case lir_unlock: {
   881       assert(op->as_OpLock() != NULL, "must be");
   882       LIR_OpLock* opLock = (LIR_OpLock*)op;
   884       if (opLock->_info)                          do_info(opLock->_info);
   886       // TODO: check if these operands really have to be temp
   887       // (or if input is sufficient). This may have influence on the oop map!
   888       assert(opLock->_lock->is_valid(), "used");  do_temp(opLock->_lock);
   889       assert(opLock->_hdr->is_valid(),  "used");  do_temp(opLock->_hdr);
   890       assert(opLock->_obj->is_valid(),  "used");  do_temp(opLock->_obj);
   892       if (opLock->_scratch->is_valid())           do_temp(opLock->_scratch);
   893       assert(opLock->_result->is_illegal(), "unused");
   895       do_stub(opLock->_stub);
   897       break;
   898     }
   901 // LIR_OpDelay
   902     case lir_delay_slot: {
   903       assert(op->as_OpDelay() != NULL, "must be");
   904       LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
   906       visit(opDelay->delay_op());
   907       break;
   908     }
   910 // LIR_OpTypeCheck
   911     case lir_instanceof:
   912     case lir_checkcast:
   913     case lir_store_check: {
   914       assert(op->as_OpTypeCheck() != NULL, "must be");
   915       LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
   917       if (opTypeCheck->_info_for_exception)       do_info(opTypeCheck->_info_for_exception);
   918       if (opTypeCheck->_info_for_patch)           do_info(opTypeCheck->_info_for_patch);
   919       if (opTypeCheck->_object->is_valid())       do_input(opTypeCheck->_object);
   920       if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
   921         do_temp(opTypeCheck->_object);
   922       }
   923       if (opTypeCheck->_array->is_valid())        do_input(opTypeCheck->_array);
   924       if (opTypeCheck->_tmp1->is_valid())         do_temp(opTypeCheck->_tmp1);
   925       if (opTypeCheck->_tmp2->is_valid())         do_temp(opTypeCheck->_tmp2);
   926       if (opTypeCheck->_tmp3->is_valid())         do_temp(opTypeCheck->_tmp3);
   927       if (opTypeCheck->_result->is_valid())       do_output(opTypeCheck->_result);
   928                                                   do_stub(opTypeCheck->_stub);
   929       break;
   930     }
   932 // LIR_OpCompareAndSwap
   933     case lir_cas_long:
   934     case lir_cas_obj:
   935     case lir_cas_int: {
   936       assert(op->as_OpCompareAndSwap() != NULL, "must be");
   937       LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
   939       assert(opCompareAndSwap->_addr->is_valid(),      "used");
   940       assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
   941       assert(opCompareAndSwap->_new_value->is_valid(), "used");
   942       if (opCompareAndSwap->_info)                    do_info(opCompareAndSwap->_info);
   943                                                       do_input(opCompareAndSwap->_addr);
   944                                                       do_temp(opCompareAndSwap->_addr);
   945                                                       do_input(opCompareAndSwap->_cmp_value);
   946                                                       do_temp(opCompareAndSwap->_cmp_value);
   947                                                       do_input(opCompareAndSwap->_new_value);
   948                                                       do_temp(opCompareAndSwap->_new_value);
   949       if (opCompareAndSwap->_tmp1->is_valid())        do_temp(opCompareAndSwap->_tmp1);
   950       if (opCompareAndSwap->_tmp2->is_valid())        do_temp(opCompareAndSwap->_tmp2);
   951       if (opCompareAndSwap->_result->is_valid())      do_output(opCompareAndSwap->_result);
   953       break;
   954     }
   957 // LIR_OpAllocArray;
   958     case lir_alloc_array: {
   959       assert(op->as_OpAllocArray() != NULL, "must be");
   960       LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
   962       if (opAllocArray->_info)                        do_info(opAllocArray->_info);
   963       if (opAllocArray->_klass->is_valid())           do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
   964       if (opAllocArray->_len->is_valid())             do_input(opAllocArray->_len);   do_temp(opAllocArray->_len);
   965       if (opAllocArray->_tmp1->is_valid())            do_temp(opAllocArray->_tmp1);
   966       if (opAllocArray->_tmp2->is_valid())            do_temp(opAllocArray->_tmp2);
   967       if (opAllocArray->_tmp3->is_valid())            do_temp(opAllocArray->_tmp3);
   968       if (opAllocArray->_tmp4->is_valid())            do_temp(opAllocArray->_tmp4);
   969       if (opAllocArray->_result->is_valid())          do_output(opAllocArray->_result);
   970                                                       do_stub(opAllocArray->_stub);
   971       break;
   972     }
   974 // LIR_OpProfileCall:
   975     case lir_profile_call: {
   976       assert(op->as_OpProfileCall() != NULL, "must be");
   977       LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
   979       if (opProfileCall->_recv->is_valid())              do_temp(opProfileCall->_recv);
   980       assert(opProfileCall->_mdo->is_valid(), "used");   do_temp(opProfileCall->_mdo);
   981       assert(opProfileCall->_tmp1->is_valid(), "used");  do_temp(opProfileCall->_tmp1);
   982       break;
   983     }
   984   default:
   985     ShouldNotReachHere();
   986   }
   987 }
   990 void LIR_OpVisitState::do_stub(CodeStub* stub) {
   991   if (stub != NULL) {
   992     stub->visit(this);
   993   }
   994 }
   996 XHandlers* LIR_OpVisitState::all_xhandler() {
   997   XHandlers* result = NULL;
   999   int i;
  1000   for (i = 0; i < info_count(); i++) {
  1001     if (info_at(i)->exception_handlers() != NULL) {
  1002       result = info_at(i)->exception_handlers();
  1003       break;
  1007 #ifdef ASSERT
  1008   for (i = 0; i < info_count(); i++) {
  1009     assert(info_at(i)->exception_handlers() == NULL ||
  1010            info_at(i)->exception_handlers() == result,
  1011            "only one xhandler list allowed per LIR-operation");
  1013 #endif
  1015   if (result != NULL) {
  1016     return result;
  1017   } else {
  1018     return new XHandlers();
  1021   return result;
  1025 #ifdef ASSERT
  1026 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
  1027   visit(op);
  1029   return opr_count(inputMode) == 0 &&
  1030          opr_count(outputMode) == 0 &&
  1031          opr_count(tempMode) == 0 &&
  1032          info_count() == 0 &&
  1033          !has_call() &&
  1034          !has_slow_case();
  1036 #endif
  1038 //---------------------------------------------------
  1041 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
  1042   masm->emit_call(this);
  1045 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
  1046   masm->emit_rtcall(this);
  1049 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
  1050   masm->emit_opLabel(this);
  1053 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
  1054   masm->emit_arraycopy(this);
  1055   masm->emit_code_stub(stub());
  1058 void LIR_Op0::emit_code(LIR_Assembler* masm) {
  1059   masm->emit_op0(this);
  1062 void LIR_Op1::emit_code(LIR_Assembler* masm) {
  1063   masm->emit_op1(this);
  1066 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
  1067   masm->emit_alloc_obj(this);
  1068   masm->emit_code_stub(stub());
  1071 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
  1072   masm->emit_opBranch(this);
  1073   if (stub()) {
  1074     masm->emit_code_stub(stub());
  1078 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
  1079   masm->emit_opConvert(this);
  1080   if (stub() != NULL) {
  1081     masm->emit_code_stub(stub());
  1085 void LIR_Op2::emit_code(LIR_Assembler* masm) {
  1086   masm->emit_op2(this);
  1089 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
  1090   masm->emit_alloc_array(this);
  1091   masm->emit_code_stub(stub());
  1094 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
  1095   masm->emit_opTypeCheck(this);
  1096   if (stub()) {
  1097     masm->emit_code_stub(stub());
  1101 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
  1102   masm->emit_compare_and_swap(this);
  1105 void LIR_Op3::emit_code(LIR_Assembler* masm) {
  1106   masm->emit_op3(this);
  1109 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
  1110   masm->emit_lock(this);
  1111   if (stub()) {
  1112     masm->emit_code_stub(stub());
  1116 #ifdef ASSERT
  1117 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
  1118   masm->emit_assert(this);
  1120 #endif
  1122 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
  1123   masm->emit_delay(this);
  1126 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
  1127   masm->emit_profile_call(this);
  1130 // LIR_List
  1131 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
  1132   : _operations(8)
  1133   , _compilation(compilation)
  1134 #ifndef PRODUCT
  1135   , _block(block)
  1136 #endif
  1137 #ifdef ASSERT
  1138   , _file(NULL)
  1139   , _line(0)
  1140 #endif
  1141 { }
  1144 #ifdef ASSERT
  1145 void LIR_List::set_file_and_line(const char * file, int line) {
  1146   const char * f = strrchr(file, '/');
  1147   if (f == NULL) f = strrchr(file, '\\');
  1148   if (f == NULL) {
  1149     f = file;
  1150   } else {
  1151     f++;
  1153   _file = f;
  1154   _line = line;
  1156 #endif
  1159 void LIR_List::append(LIR_InsertionBuffer* buffer) {
  1160   assert(this == buffer->lir_list(), "wrong lir list");
  1161   const int n = _operations.length();
  1163   if (buffer->number_of_ops() > 0) {
  1164     // increase size of instructions list
  1165     _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
  1166     // insert ops from buffer into instructions list
  1167     int op_index = buffer->number_of_ops() - 1;
  1168     int ip_index = buffer->number_of_insertion_points() - 1;
  1169     int from_index = n - 1;
  1170     int to_index = _operations.length() - 1;
  1171     for (; ip_index >= 0; ip_index --) {
  1172       int index = buffer->index_at(ip_index);
  1173       // make room after insertion point
  1174       while (index < from_index) {
  1175         _operations.at_put(to_index --, _operations.at(from_index --));
  1177       // insert ops from buffer
  1178       for (int i = buffer->count_at(ip_index); i > 0; i --) {
  1179         _operations.at_put(to_index --, buffer->op_at(op_index --));
  1184   buffer->finish();
  1188 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
  1189   assert(reg->type() == T_OBJECT, "bad reg");
  1190   append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o),  reg, T_OBJECT, lir_patch_normal, info));
  1193 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
  1194   assert(reg->type() == T_METADATA, "bad reg");
  1195   append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
  1198 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
  1199   append(new LIR_Op1(
  1200             lir_move,
  1201             LIR_OprFact::address(addr),
  1202             src,
  1203             addr->type(),
  1204             patch_code,
  1205             info));
  1209 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
  1210   append(new LIR_Op1(
  1211             lir_move,
  1212             LIR_OprFact::address(address),
  1213             dst,
  1214             address->type(),
  1215             patch_code,
  1216             info, lir_move_volatile));
  1219 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
  1220   append(new LIR_Op1(
  1221             lir_move,
  1222             LIR_OprFact::address(new LIR_Address(base, offset, type)),
  1223             dst,
  1224             type,
  1225             patch_code,
  1226             info, lir_move_volatile));
  1230 void LIR_List::prefetch(LIR_Address* addr, bool is_store) {
  1231   append(new LIR_Op1(
  1232             is_store ? lir_prefetchw : lir_prefetchr,
  1233             LIR_OprFact::address(addr)));
  1237 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
  1238   append(new LIR_Op1(
  1239             lir_move,
  1240             LIR_OprFact::intConst(v),
  1241             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
  1242             type,
  1243             patch_code,
  1244             info));
  1248 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
  1249   append(new LIR_Op1(
  1250             lir_move,
  1251             LIR_OprFact::oopConst(o),
  1252             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
  1253             type,
  1254             patch_code,
  1255             info));
  1259 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
  1260   append(new LIR_Op1(
  1261             lir_move,
  1262             src,
  1263             LIR_OprFact::address(addr),
  1264             addr->type(),
  1265             patch_code,
  1266             info));
  1270 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
  1271   append(new LIR_Op1(
  1272             lir_move,
  1273             src,
  1274             LIR_OprFact::address(addr),
  1275             addr->type(),
  1276             patch_code,
  1277             info,
  1278             lir_move_volatile));
  1281 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
  1282   append(new LIR_Op1(
  1283             lir_move,
  1284             src,
  1285             LIR_OprFact::address(new LIR_Address(base, offset, type)),
  1286             type,
  1287             patch_code,
  1288             info, lir_move_volatile));
  1292 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
  1293   append(new LIR_Op3(
  1294                     lir_idiv,
  1295                     left,
  1296                     right,
  1297                     tmp,
  1298                     res,
  1299                     info));
  1303 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
  1304   append(new LIR_Op3(
  1305                     lir_idiv,
  1306                     left,
  1307                     LIR_OprFact::intConst(right),
  1308                     tmp,
  1309                     res,
  1310                     info));
  1314 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
  1315   append(new LIR_Op3(
  1316                     lir_irem,
  1317                     left,
  1318                     right,
  1319                     tmp,
  1320                     res,
  1321                     info));
  1325 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
  1326   append(new LIR_Op3(
  1327                     lir_irem,
  1328                     left,
  1329                     LIR_OprFact::intConst(right),
  1330                     tmp,
  1331                     res,
  1332                     info));
  1336 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
  1337   append(new LIR_Op2(
  1338                     lir_cmp,
  1339                     condition,
  1340                     LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
  1341                     LIR_OprFact::intConst(c),
  1342                     info));
  1346 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
  1347   append(new LIR_Op2(
  1348                     lir_cmp,
  1349                     condition,
  1350                     reg,
  1351                     LIR_OprFact::address(addr),
  1352                     info));
  1355 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
  1356                                int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
  1357   append(new LIR_OpAllocObj(
  1358                            klass,
  1359                            dst,
  1360                            t1,
  1361                            t2,
  1362                            t3,
  1363                            t4,
  1364                            header_size,
  1365                            object_size,
  1366                            init_check,
  1367                            stub));
  1370 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) {
  1371   append(new LIR_OpAllocArray(
  1372                            klass,
  1373                            len,
  1374                            dst,
  1375                            t1,
  1376                            t2,
  1377                            t3,
  1378                            t4,
  1379                            type,
  1380                            stub));
  1383 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
  1384  append(new LIR_Op2(
  1385                     lir_shl,
  1386                     value,
  1387                     count,
  1388                     dst,
  1389                     tmp));
  1392 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
  1393  append(new LIR_Op2(
  1394                     lir_shr,
  1395                     value,
  1396                     count,
  1397                     dst,
  1398                     tmp));
  1402 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
  1403  append(new LIR_Op2(
  1404                     lir_ushr,
  1405                     value,
  1406                     count,
  1407                     dst,
  1408                     tmp));
  1411 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
  1412   append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
  1413                      left,
  1414                      right,
  1415                      dst));
  1418 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) {
  1419   append(new LIR_OpLock(
  1420                     lir_lock,
  1421                     hdr,
  1422                     obj,
  1423                     lock,
  1424                     scratch,
  1425                     stub,
  1426                     info));
  1429 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
  1430   append(new LIR_OpLock(
  1431                     lir_unlock,
  1432                     hdr,
  1433                     obj,
  1434                     lock,
  1435                     scratch,
  1436                     stub,
  1437                     NULL));
  1441 void check_LIR() {
  1442   // cannot do the proper checking as PRODUCT and other modes return different results
  1443   // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
  1448 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
  1449                           LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
  1450                           CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
  1451                           ciMethod* profiled_method, int profiled_bci) {
  1452   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
  1453                                            tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub);
  1454   if (profiled_method != NULL) {
  1455     c->set_profiled_method(profiled_method);
  1456     c->set_profiled_bci(profiled_bci);
  1457     c->set_should_profile(true);
  1459   append(c);
  1462 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) {
  1463   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
  1464   if (profiled_method != NULL) {
  1465     c->set_profiled_method(profiled_method);
  1466     c->set_profiled_bci(profiled_bci);
  1467     c->set_should_profile(true);
  1469   append(c);
  1473 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
  1474                            CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
  1475   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
  1476   if (profiled_method != NULL) {
  1477     c->set_profiled_method(profiled_method);
  1478     c->set_profiled_bci(profiled_bci);
  1479     c->set_should_profile(true);
  1481   append(c);
  1485 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
  1486                         LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
  1487   append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
  1490 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
  1491                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
  1492   append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
  1495 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
  1496                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
  1497   append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
  1501 #ifdef PRODUCT
  1503 void print_LIR(BlockList* blocks) {
  1506 #else
  1507 // LIR_OprDesc
  1508 void LIR_OprDesc::print() const {
  1509   print(tty);
  1512 void LIR_OprDesc::print(outputStream* out) const {
  1513   if (is_illegal()) {
  1514     return;
  1517   out->print("[");
  1518   if (is_pointer()) {
  1519     pointer()->print_value_on(out);
  1520   } else if (is_single_stack()) {
  1521     out->print("stack:%d", single_stack_ix());
  1522   } else if (is_double_stack()) {
  1523     out->print("dbl_stack:%d",double_stack_ix());
  1524   } else if (is_virtual()) {
  1525     out->print("R%d", vreg_number());
  1526   } else if (is_single_cpu()) {
  1527     out->print(as_register()->name());
  1528   } else if (is_double_cpu()) {
  1529     out->print(as_register_hi()->name());
  1530     out->print(as_register_lo()->name());
  1531 #if defined(X86)
  1532   } else if (is_single_xmm()) {
  1533     out->print(as_xmm_float_reg()->name());
  1534   } else if (is_double_xmm()) {
  1535     out->print(as_xmm_double_reg()->name());
  1536   } else if (is_single_fpu()) {
  1537     out->print("fpu%d", fpu_regnr());
  1538   } else if (is_double_fpu()) {
  1539     out->print("fpu%d", fpu_regnrLo());
  1540 #elif defined(ARM)
  1541   } else if (is_single_fpu()) {
  1542     out->print("s%d", fpu_regnr());
  1543   } else if (is_double_fpu()) {
  1544     out->print("d%d", fpu_regnrLo() >> 1);
  1545 #else
  1546   } else if (is_single_fpu()) {
  1547     out->print(as_float_reg()->name());
  1548   } else if (is_double_fpu()) {
  1549     out->print(as_double_reg()->name());
  1550 #endif
  1552   } else if (is_illegal()) {
  1553     out->print("-");
  1554   } else {
  1555     out->print("Unknown Operand");
  1557   if (!is_illegal()) {
  1558     out->print("|%c", type_char());
  1560   if (is_register() && is_last_use()) {
  1561     out->print("(last_use)");
  1563   out->print("]");
  1567 // LIR_Address
  1568 void LIR_Const::print_value_on(outputStream* out) const {
  1569   switch (type()) {
  1570     case T_ADDRESS:out->print("address:%d",as_jint());          break;
  1571     case T_INT:    out->print("int:%d",   as_jint());           break;
  1572     case T_LONG:   out->print("lng:" JLONG_FORMAT, as_jlong()); break;
  1573     case T_FLOAT:  out->print("flt:%f",   as_jfloat());         break;
  1574     case T_DOUBLE: out->print("dbl:%f",   as_jdouble());        break;
  1575     case T_OBJECT: out->print("obj:0x%x", as_jobject());        break;
  1576     case T_METADATA: out->print("metadata:0x%x", as_metadata());break;
  1577     default:       out->print("%3d:0x%x",type(), as_jdouble()); break;
  1581 // LIR_Address
  1582 void LIR_Address::print_value_on(outputStream* out) const {
  1583   out->print("Base:"); _base->print(out);
  1584   if (!_index->is_illegal()) {
  1585     out->print(" Index:"); _index->print(out);
  1586     switch (scale()) {
  1587     case times_1: break;
  1588     case times_2: out->print(" * 2"); break;
  1589     case times_4: out->print(" * 4"); break;
  1590     case times_8: out->print(" * 8"); break;
  1593   out->print(" Disp: %d", _disp);
  1596 // debug output of block header without InstructionPrinter
  1597 //       (because phi functions are not necessary for LIR)
  1598 static void print_block(BlockBegin* x) {
  1599   // print block id
  1600   BlockEnd* end = x->end();
  1601   tty->print("B%d ", x->block_id());
  1603   // print flags
  1604   if (x->is_set(BlockBegin::std_entry_flag))               tty->print("std ");
  1605   if (x->is_set(BlockBegin::osr_entry_flag))               tty->print("osr ");
  1606   if (x->is_set(BlockBegin::exception_entry_flag))         tty->print("ex ");
  1607   if (x->is_set(BlockBegin::subroutine_entry_flag))        tty->print("jsr ");
  1608   if (x->is_set(BlockBegin::backward_branch_target_flag))  tty->print("bb ");
  1609   if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
  1610   if (x->is_set(BlockBegin::linear_scan_loop_end_flag))    tty->print("le ");
  1612   // print block bci range
  1613   tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
  1615   // print predecessors and successors
  1616   if (x->number_of_preds() > 0) {
  1617     tty->print("preds: ");
  1618     for (int i = 0; i < x->number_of_preds(); i ++) {
  1619       tty->print("B%d ", x->pred_at(i)->block_id());
  1623   if (x->number_of_sux() > 0) {
  1624     tty->print("sux: ");
  1625     for (int i = 0; i < x->number_of_sux(); i ++) {
  1626       tty->print("B%d ", x->sux_at(i)->block_id());
  1630   // print exception handlers
  1631   if (x->number_of_exception_handlers() > 0) {
  1632     tty->print("xhandler: ");
  1633     for (int i = 0; i < x->number_of_exception_handlers();  i++) {
  1634       tty->print("B%d ", x->exception_handler_at(i)->block_id());
  1638   tty->cr();
  1641 void print_LIR(BlockList* blocks) {
  1642   tty->print_cr("LIR:");
  1643   int i;
  1644   for (i = 0; i < blocks->length(); i++) {
  1645     BlockBegin* bb = blocks->at(i);
  1646     print_block(bb);
  1647     tty->print("__id_Instruction___________________________________________"); tty->cr();
  1648     bb->lir()->print_instructions();
  1652 void LIR_List::print_instructions() {
  1653   for (int i = 0; i < _operations.length(); i++) {
  1654     _operations.at(i)->print(); tty->cr();
  1656   tty->cr();
  1659 // LIR_Ops printing routines
  1660 // LIR_Op
  1661 void LIR_Op::print_on(outputStream* out) const {
  1662   if (id() != -1 || PrintCFGToFile) {
  1663     out->print("%4d ", id());
  1664   } else {
  1665     out->print("     ");
  1667   out->print(name()); out->print(" ");
  1668   print_instr(out);
  1669   if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
  1670 #ifdef ASSERT
  1671   if (Verbose && _file != NULL) {
  1672     out->print(" (%s:%d)", _file, _line);
  1674 #endif
  1677 const char * LIR_Op::name() const {
  1678   const char* s = NULL;
  1679   switch(code()) {
  1680      // LIR_Op0
  1681      case lir_membar:                s = "membar";        break;
  1682      case lir_membar_acquire:        s = "membar_acquire"; break;
  1683      case lir_membar_release:        s = "membar_release"; break;
  1684      case lir_membar_loadload:       s = "membar_loadload";   break;
  1685      case lir_membar_storestore:     s = "membar_storestore"; break;
  1686      case lir_membar_loadstore:      s = "membar_loadstore";  break;
  1687      case lir_membar_storeload:      s = "membar_storeload";  break;
  1688      case lir_word_align:            s = "word_align";    break;
  1689      case lir_label:                 s = "label";         break;
  1690      case lir_nop:                   s = "nop";           break;
  1691      case lir_backwardbranch_target: s = "backbranch";    break;
  1692      case lir_std_entry:             s = "std_entry";     break;
  1693      case lir_osr_entry:             s = "osr_entry";     break;
  1694      case lir_build_frame:           s = "build_frm";     break;
  1695      case lir_fpop_raw:              s = "fpop_raw";      break;
  1696      case lir_24bit_FPU:             s = "24bit_FPU";     break;
  1697      case lir_reset_FPU:             s = "reset_FPU";     break;
  1698      case lir_breakpoint:            s = "breakpoint";    break;
  1699      case lir_get_thread:            s = "get_thread";    break;
  1700      // LIR_Op1
  1701      case lir_fxch:                  s = "fxch";          break;
  1702      case lir_fld:                   s = "fld";           break;
  1703      case lir_ffree:                 s = "ffree";         break;
  1704      case lir_push:                  s = "push";          break;
  1705      case lir_pop:                   s = "pop";           break;
  1706      case lir_null_check:            s = "null_check";    break;
  1707      case lir_return:                s = "return";        break;
  1708      case lir_safepoint:             s = "safepoint";     break;
  1709      case lir_neg:                   s = "neg";           break;
  1710      case lir_leal:                  s = "leal";          break;
  1711      case lir_branch:                s = "branch";        break;
  1712      case lir_cond_float_branch:     s = "flt_cond_br";   break;
  1713      case lir_move:                  s = "move";          break;
  1714      case lir_roundfp:               s = "roundfp";       break;
  1715      case lir_rtcall:                s = "rtcall";        break;
  1716      case lir_throw:                 s = "throw";         break;
  1717      case lir_unwind:                s = "unwind";        break;
  1718      case lir_convert:               s = "convert";       break;
  1719      case lir_alloc_object:          s = "alloc_obj";     break;
  1720      case lir_monaddr:               s = "mon_addr";      break;
  1721      case lir_pack64:                s = "pack64";        break;
  1722      case lir_unpack64:              s = "unpack64";      break;
  1723      // LIR_Op2
  1724      case lir_cmp:                   s = "cmp";           break;
  1725      case lir_cmp_l2i:               s = "cmp_l2i";       break;
  1726      case lir_ucmp_fd2i:             s = "ucomp_fd2i";    break;
  1727      case lir_cmp_fd2i:              s = "comp_fd2i";     break;
  1728      case lir_cmove:                 s = "cmove";         break;
  1729      case lir_add:                   s = "add";           break;
  1730      case lir_sub:                   s = "sub";           break;
  1731      case lir_mul:                   s = "mul";           break;
  1732      case lir_mul_strictfp:          s = "mul_strictfp";  break;
  1733      case lir_div:                   s = "div";           break;
  1734      case lir_div_strictfp:          s = "div_strictfp";  break;
  1735      case lir_rem:                   s = "rem";           break;
  1736      case lir_abs:                   s = "abs";           break;
  1737      case lir_sqrt:                  s = "sqrt";          break;
  1738      case lir_sin:                   s = "sin";           break;
  1739      case lir_cos:                   s = "cos";           break;
  1740      case lir_tan:                   s = "tan";           break;
  1741      case lir_log:                   s = "log";           break;
  1742      case lir_log10:                 s = "log10";         break;
  1743      case lir_exp:                   s = "exp";           break;
  1744      case lir_pow:                   s = "pow";           break;
  1745      case lir_logic_and:             s = "logic_and";     break;
  1746      case lir_logic_or:              s = "logic_or";      break;
  1747      case lir_logic_xor:             s = "logic_xor";     break;
  1748      case lir_shl:                   s = "shift_left";    break;
  1749      case lir_shr:                   s = "shift_right";   break;
  1750      case lir_ushr:                  s = "ushift_right";  break;
  1751      case lir_alloc_array:           s = "alloc_array";   break;
  1752      case lir_xadd:                  s = "xadd";          break;
  1753      case lir_xchg:                  s = "xchg";          break;
  1754      // LIR_Op3
  1755      case lir_idiv:                  s = "idiv";          break;
  1756      case lir_irem:                  s = "irem";          break;
  1757      // LIR_OpJavaCall
  1758      case lir_static_call:           s = "static";        break;
  1759      case lir_optvirtual_call:       s = "optvirtual";    break;
  1760      case lir_icvirtual_call:        s = "icvirtual";     break;
  1761      case lir_virtual_call:          s = "virtual";       break;
  1762      case lir_dynamic_call:          s = "dynamic";       break;
  1763      // LIR_OpArrayCopy
  1764      case lir_arraycopy:             s = "arraycopy";     break;
  1765      // LIR_OpLock
  1766      case lir_lock:                  s = "lock";          break;
  1767      case lir_unlock:                s = "unlock";        break;
  1768      // LIR_OpDelay
  1769      case lir_delay_slot:            s = "delay";         break;
  1770      // LIR_OpTypeCheck
  1771      case lir_instanceof:            s = "instanceof";    break;
  1772      case lir_checkcast:             s = "checkcast";     break;
  1773      case lir_store_check:           s = "store_check";   break;
  1774      // LIR_OpCompareAndSwap
  1775      case lir_cas_long:              s = "cas_long";      break;
  1776      case lir_cas_obj:               s = "cas_obj";      break;
  1777      case lir_cas_int:               s = "cas_int";      break;
  1778      // LIR_OpProfileCall
  1779      case lir_profile_call:          s = "profile_call";  break;
  1780      // LIR_OpAssert
  1781 #ifdef ASSERT
  1782      case lir_assert:                s = "assert";        break;
  1783 #endif
  1784      case lir_none:                  ShouldNotReachHere();break;
  1785     default:                         s = "illegal_op";    break;
  1787   return s;
  1790 // LIR_OpJavaCall
  1791 void LIR_OpJavaCall::print_instr(outputStream* out) const {
  1792   out->print("call: ");
  1793   out->print("[addr: 0x%x]", address());
  1794   if (receiver()->is_valid()) {
  1795     out->print(" [recv: ");   receiver()->print(out);   out->print("]");
  1797   if (result_opr()->is_valid()) {
  1798     out->print(" [result: "); result_opr()->print(out); out->print("]");
  1802 // LIR_OpLabel
  1803 void LIR_OpLabel::print_instr(outputStream* out) const {
  1804   out->print("[label:0x%x]", _label);
  1807 // LIR_OpArrayCopy
  1808 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
  1809   src()->print(out);     out->print(" ");
  1810   src_pos()->print(out); out->print(" ");
  1811   dst()->print(out);     out->print(" ");
  1812   dst_pos()->print(out); out->print(" ");
  1813   length()->print(out);  out->print(" ");
  1814   tmp()->print(out);     out->print(" ");
  1817 // LIR_OpCompareAndSwap
  1818 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
  1819   addr()->print(out);      out->print(" ");
  1820   cmp_value()->print(out); out->print(" ");
  1821   new_value()->print(out); out->print(" ");
  1822   tmp1()->print(out);      out->print(" ");
  1823   tmp2()->print(out);      out->print(" ");
  1827 // LIR_Op0
  1828 void LIR_Op0::print_instr(outputStream* out) const {
  1829   result_opr()->print(out);
  1832 // LIR_Op1
  1833 const char * LIR_Op1::name() const {
  1834   if (code() == lir_move) {
  1835     switch (move_kind()) {
  1836     case lir_move_normal:
  1837       return "move";
  1838     case lir_move_unaligned:
  1839       return "unaligned move";
  1840     case lir_move_volatile:
  1841       return "volatile_move";
  1842     case lir_move_wide:
  1843       return "wide_move";
  1844     default:
  1845       ShouldNotReachHere();
  1846     return "illegal_op";
  1848   } else {
  1849     return LIR_Op::name();
  1854 void LIR_Op1::print_instr(outputStream* out) const {
  1855   _opr->print(out);         out->print(" ");
  1856   result_opr()->print(out); out->print(" ");
  1857   print_patch_code(out, patch_code());
  1861 // LIR_Op1
  1862 void LIR_OpRTCall::print_instr(outputStream* out) const {
  1863   intx a = (intx)addr();
  1864   out->print(Runtime1::name_for_address(addr()));
  1865   out->print(" ");
  1866   tmp()->print(out);
  1869 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
  1870   switch(code) {
  1871     case lir_patch_none:                                 break;
  1872     case lir_patch_low:    out->print("[patch_low]");    break;
  1873     case lir_patch_high:   out->print("[patch_high]");   break;
  1874     case lir_patch_normal: out->print("[patch_normal]"); break;
  1875     default: ShouldNotReachHere();
  1879 // LIR_OpBranch
  1880 void LIR_OpBranch::print_instr(outputStream* out) const {
  1881   print_condition(out, cond());             out->print(" ");
  1882   if (block() != NULL) {
  1883     out->print("[B%d] ", block()->block_id());
  1884   } else if (stub() != NULL) {
  1885     out->print("[");
  1886     stub()->print_name(out);
  1887     out->print(": 0x%x]", stub());
  1888     if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci());
  1889   } else {
  1890     out->print("[label:0x%x] ", label());
  1892   if (ublock() != NULL) {
  1893     out->print("unordered: [B%d] ", ublock()->block_id());
  1897 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
  1898   switch(cond) {
  1899     case lir_cond_equal:           out->print("[EQ]");      break;
  1900     case lir_cond_notEqual:        out->print("[NE]");      break;
  1901     case lir_cond_less:            out->print("[LT]");      break;
  1902     case lir_cond_lessEqual:       out->print("[LE]");      break;
  1903     case lir_cond_greaterEqual:    out->print("[GE]");      break;
  1904     case lir_cond_greater:         out->print("[GT]");      break;
  1905     case lir_cond_belowEqual:      out->print("[BE]");      break;
  1906     case lir_cond_aboveEqual:      out->print("[AE]");      break;
  1907     case lir_cond_always:          out->print("[AL]");      break;
  1908     default:                       out->print("[%d]",cond); break;
  1912 // LIR_OpConvert
  1913 void LIR_OpConvert::print_instr(outputStream* out) const {
  1914   print_bytecode(out, bytecode());
  1915   in_opr()->print(out);                  out->print(" ");
  1916   result_opr()->print(out);              out->print(" ");
  1917 #ifdef PPC
  1918   if(tmp1()->is_valid()) {
  1919     tmp1()->print(out); out->print(" ");
  1920     tmp2()->print(out); out->print(" ");
  1922 #endif
  1925 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
  1926   switch(code) {
  1927     case Bytecodes::_d2f: out->print("[d2f] "); break;
  1928     case Bytecodes::_d2i: out->print("[d2i] "); break;
  1929     case Bytecodes::_d2l: out->print("[d2l] "); break;
  1930     case Bytecodes::_f2d: out->print("[f2d] "); break;
  1931     case Bytecodes::_f2i: out->print("[f2i] "); break;
  1932     case Bytecodes::_f2l: out->print("[f2l] "); break;
  1933     case Bytecodes::_i2b: out->print("[i2b] "); break;
  1934     case Bytecodes::_i2c: out->print("[i2c] "); break;
  1935     case Bytecodes::_i2d: out->print("[i2d] "); break;
  1936     case Bytecodes::_i2f: out->print("[i2f] "); break;
  1937     case Bytecodes::_i2l: out->print("[i2l] "); break;
  1938     case Bytecodes::_i2s: out->print("[i2s] "); break;
  1939     case Bytecodes::_l2i: out->print("[l2i] "); break;
  1940     case Bytecodes::_l2f: out->print("[l2f] "); break;
  1941     case Bytecodes::_l2d: out->print("[l2d] "); break;
  1942     default:
  1943       out->print("[?%d]",code);
  1944     break;
  1948 void LIR_OpAllocObj::print_instr(outputStream* out) const {
  1949   klass()->print(out);                      out->print(" ");
  1950   obj()->print(out);                        out->print(" ");
  1951   tmp1()->print(out);                       out->print(" ");
  1952   tmp2()->print(out);                       out->print(" ");
  1953   tmp3()->print(out);                       out->print(" ");
  1954   tmp4()->print(out);                       out->print(" ");
  1955   out->print("[hdr:%d]", header_size()); out->print(" ");
  1956   out->print("[obj:%d]", object_size()); out->print(" ");
  1957   out->print("[lbl:0x%x]", stub()->entry());
  1960 void LIR_OpRoundFP::print_instr(outputStream* out) const {
  1961   _opr->print(out);         out->print(" ");
  1962   tmp()->print(out);        out->print(" ");
  1963   result_opr()->print(out); out->print(" ");
  1966 // LIR_Op2
  1967 void LIR_Op2::print_instr(outputStream* out) const {
  1968   if (code() == lir_cmove) {
  1969     print_condition(out, condition());         out->print(" ");
  1971   in_opr1()->print(out);    out->print(" ");
  1972   in_opr2()->print(out);    out->print(" ");
  1973   if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out);    out->print(" "); }
  1974   if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out);    out->print(" "); }
  1975   if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out);    out->print(" "); }
  1976   if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out);    out->print(" "); }
  1977   if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out);    out->print(" "); }
  1978   result_opr()->print(out);
  1981 void LIR_OpAllocArray::print_instr(outputStream* out) const {
  1982   klass()->print(out);                   out->print(" ");
  1983   len()->print(out);                     out->print(" ");
  1984   obj()->print(out);                     out->print(" ");
  1985   tmp1()->print(out);                    out->print(" ");
  1986   tmp2()->print(out);                    out->print(" ");
  1987   tmp3()->print(out);                    out->print(" ");
  1988   tmp4()->print(out);                    out->print(" ");
  1989   out->print("[type:0x%x]", type());     out->print(" ");
  1990   out->print("[label:0x%x]", stub()->entry());
  1994 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
  1995   object()->print(out);                  out->print(" ");
  1996   if (code() == lir_store_check) {
  1997     array()->print(out);                 out->print(" ");
  1999   if (code() != lir_store_check) {
  2000     klass()->print_name_on(out);         out->print(" ");
  2001     if (fast_check())                 out->print("fast_check ");
  2003   tmp1()->print(out);                    out->print(" ");
  2004   tmp2()->print(out);                    out->print(" ");
  2005   tmp3()->print(out);                    out->print(" ");
  2006   result_opr()->print(out);              out->print(" ");
  2007   if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
  2011 // LIR_Op3
  2012 void LIR_Op3::print_instr(outputStream* out) const {
  2013   in_opr1()->print(out);    out->print(" ");
  2014   in_opr2()->print(out);    out->print(" ");
  2015   in_opr3()->print(out);    out->print(" ");
  2016   result_opr()->print(out);
  2020 void LIR_OpLock::print_instr(outputStream* out) const {
  2021   hdr_opr()->print(out);   out->print(" ");
  2022   obj_opr()->print(out);   out->print(" ");
  2023   lock_opr()->print(out);  out->print(" ");
  2024   if (_scratch->is_valid()) {
  2025     _scratch->print(out);  out->print(" ");
  2027   out->print("[lbl:0x%x]", stub()->entry());
  2030 #ifdef ASSERT
  2031 void LIR_OpAssert::print_instr(outputStream* out) const {
  2032   print_condition(out, condition()); out->print(" ");
  2033   in_opr1()->print(out);             out->print(" ");
  2034   in_opr2()->print(out);             out->print(", \"");
  2035   out->print(msg());                 out->print("\"");
  2037 #endif
  2040 void LIR_OpDelay::print_instr(outputStream* out) const {
  2041   _op->print_on(out);
  2045 // LIR_OpProfileCall
  2046 void LIR_OpProfileCall::print_instr(outputStream* out) const {
  2047   profiled_method()->name()->print_symbol_on(out);
  2048   out->print(".");
  2049   profiled_method()->holder()->name()->print_symbol_on(out);
  2050   out->print(" @ %d ", profiled_bci());
  2051   mdo()->print(out);           out->print(" ");
  2052   recv()->print(out);          out->print(" ");
  2053   tmp1()->print(out);          out->print(" ");
  2056 #endif // PRODUCT
  2058 // Implementation of LIR_InsertionBuffer
  2060 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
  2061   assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
  2063   int i = number_of_insertion_points() - 1;
  2064   if (i < 0 || index_at(i) < index) {
  2065     append_new(index, 1);
  2066   } else {
  2067     assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
  2068     assert(count_at(i) > 0, "check");
  2069     set_count_at(i, count_at(i) + 1);
  2071   _ops.push(op);
  2073   DEBUG_ONLY(verify());
  2076 #ifdef ASSERT
  2077 void LIR_InsertionBuffer::verify() {
  2078   int sum = 0;
  2079   int prev_idx = -1;
  2081   for (int i = 0; i < number_of_insertion_points(); i++) {
  2082     assert(prev_idx < index_at(i), "index must be ordered ascending");
  2083     sum += count_at(i);
  2085   assert(sum == number_of_ops(), "wrong total sum");
  2087 #endif

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