jdk8-mips64-public/hotspot: src/share/vm/c1/c1_LIR.cpp@8c95980d0b66 (annotated)

src/share/vm/c1/c1_LIR.cpp@8c95980d0b66 (annotated)

src/share/vm/c1/c1_LIR.cpp

Sat, 07 Nov 2020 10:30:02 +0800

author: aoqi
date: Sat, 07 Nov 2020 10:30:02 +0800
changeset 10026: 8c95980d0b66
parent 9806: 758c07667682
permissions: -rw-r--r--

Added tag mips-jdk8u275-b01 for changeset d3b4d62f391f

 /*
  * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 /*
  * This file has been modified by Loongson Technology in 2015, 2018. These
  * modifications are Copyright (c) 2015, 2018, Loongson Technology, and are made
  * available on the same license terms set forth above.
  */
 #include "precompiled.hpp"
 #include "c1/c1_InstructionPrinter.hpp"
 #include "c1/c1_LIR.hpp"
 #include "c1/c1_LIRAssembler.hpp"
 #include "c1/c1_ValueStack.hpp"
 #include "ci/ciInstance.hpp"
 #include "runtime/sharedRuntime.hpp"
 Register LIR_OprDesc::as_register() const {
   return FrameMap::cpu_rnr2reg(cpu_regnr());
 }
 Register LIR_OprDesc::as_register_lo() const {
   return FrameMap::cpu_rnr2reg(cpu_regnrLo());
 }
 Register LIR_OprDesc::as_register_hi() const {
   return FrameMap::cpu_rnr2reg(cpu_regnrHi());
 }
 #if defined(X86)
 XMMRegister LIR_OprDesc::as_xmm_float_reg() const {
   return FrameMap::nr2xmmreg(xmm_regnr());
 }
 XMMRegister LIR_OprDesc::as_xmm_double_reg() const {
   assert(xmm_regnrLo() == xmm_regnrHi(), "assumed in calculation");
   return FrameMap::nr2xmmreg(xmm_regnrLo());
 }
 #endif // X86
 #if defined(SPARC) || defined(PPC) || defined(MIPS)
 FloatRegister LIR_OprDesc::as_float_reg() const {
   return FrameMap::nr2floatreg(fpu_regnr());
 }
 FloatRegister LIR_OprDesc::as_double_reg() const {
   return FrameMap::nr2floatreg(fpu_regnrHi());
 }
 #endif
 #ifdef ARM
 FloatRegister LIR_OprDesc::as_float_reg() const {
   return as_FloatRegister(fpu_regnr());
 }
 FloatRegister LIR_OprDesc::as_double_reg() const {
   return as_FloatRegister(fpu_regnrLo());
 }
 #endif
 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
 LIR_Opr LIR_OprFact::value_type(ValueType* type) {
   ValueTag tag = type->tag();
   switch (tag) {
   case metaDataTag : {
     ClassConstant* c = type->as_ClassConstant();
     if (c != NULL && !c->value()->is_loaded()) {
       return LIR_OprFact::metadataConst(NULL);
     } else if (c != NULL) {
       return LIR_OprFact::metadataConst(c->value()->constant_encoding());
     } else {
       MethodConstant* m = type->as_MethodConstant();
       assert (m != NULL, "not a class or a method?");
       return LIR_OprFact::metadataConst(m->value()->constant_encoding());
     }
   }
   case objectTag : {
       return LIR_OprFact::oopConst(type->as_ObjectType()->encoding());
     }
   case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value());
   case intTag    : return LIR_OprFact::intConst(type->as_IntConstant()->value());
   case floatTag  : return LIR_OprFact::floatConst(type->as_FloatConstant()->value());
   case longTag   : return LIR_OprFact::longConst(type->as_LongConstant()->value());
   case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value());
   default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
   }
 }
 LIR_Opr LIR_OprFact::dummy_value_type(ValueType* type) {
   switch (type->tag()) {
     case objectTag: return LIR_OprFact::oopConst(NULL);
     case addressTag:return LIR_OprFact::addressConst(0);
     case intTag:    return LIR_OprFact::intConst(0);
     case floatTag:  return LIR_OprFact::floatConst(0.0);
     case longTag:   return LIR_OprFact::longConst(0);
     case doubleTag: return LIR_OprFact::doubleConst(0.0);
     default:        ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
   }
   return illegalOpr;
 }
 //---------------------------------------------------
 LIR_Address::Scale LIR_Address::scale(BasicType type) {
   int elem_size = type2aelembytes(type);
   switch (elem_size) {
   case 1: return LIR_Address::times_1;
   case 2: return LIR_Address::times_2;
   case 4: return LIR_Address::times_4;
   case 8: return LIR_Address::times_8;
   }
   ShouldNotReachHere();
   return LIR_Address::times_1;
 }
 #ifndef PRODUCT
 void LIR_Address::verify0() const {
 #if defined(SPARC) || defined(PPC) || defined(MIPS)
   assert(scale() == times_1, "Scaled addressing mode not available on SPARC/PPC and should not be used");
   assert(disp() == 0 || index()->is_illegal(), "can't have both");
 #endif
 #ifdef _LP64
   assert(base()->is_cpu_register(), "wrong base operand");
   assert(index()->is_illegal() || index()->is_double_cpu(), "wrong index operand");
 #ifndef MIPS
   assert(base()->type() == T_OBJECT || base()->type() == T_LONG || base()->type() == T_METADATA,
          "wrong type for addresses");
 #endif
 #else
   assert(base()->is_single_cpu(), "wrong base operand");
   assert(index()->is_illegal() || index()->is_single_cpu(), "wrong index operand");
   assert(base()->type() == T_OBJECT || base()->type() == T_INT || base()->type() == T_METADATA,
          "wrong type for addresses");
 #endif
 }
 #endif
 //---------------------------------------------------
 char LIR_OprDesc::type_char(BasicType t) {
   switch (t) {
     case T_ARRAY:
       t = T_OBJECT;
     case T_BOOLEAN:
     case T_CHAR:
     case T_FLOAT:
     case T_DOUBLE:
     case T_BYTE:
     case T_SHORT:
     case T_INT:
     case T_LONG:
     case T_OBJECT:
     case T_ADDRESS:
     case T_VOID:
       return ::type2char(t);
     case T_METADATA:
       return 'M';
     case T_ILLEGAL:
       return '?';
     default:
       ShouldNotReachHere();
       return '?';
   }
 }
 #ifndef PRODUCT
 void LIR_OprDesc::validate_type() const {
 #ifdef ASSERT
   if (!is_pointer() && !is_illegal()) {
     OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160
     switch (as_BasicType(type_field())) {
     case T_LONG:
       assert((kindfield == cpu_register || kindfield == stack_value) &&
              size_field() == double_size, "must match");
       break;
     case T_FLOAT:
       // FP return values can be also in CPU registers on ARM and PPC (softfp ABI)
       assert((kindfield == fpu_register || kindfield == stack_value
              ARM_ONLY(|| kindfield == cpu_register)
              PPC_ONLY(|| kindfield == cpu_register) ) &&
              size_field() == single_size, "must match");
       break;
     case T_DOUBLE:
       // FP return values can be also in CPU registers on ARM and PPC (softfp ABI)
       assert((kindfield == fpu_register || kindfield == stack_value
              ARM_ONLY(|| kindfield == cpu_register)
              PPC_ONLY(|| kindfield == cpu_register) ) &&
              size_field() == double_size, "must match");
       break;
     case T_BOOLEAN:
     case T_CHAR:
     case T_BYTE:
     case T_SHORT:
     case T_INT:
     case T_ADDRESS:
     case T_OBJECT:
     case T_METADATA:
     case T_ARRAY:
       assert((kindfield == cpu_register || kindfield == stack_value) &&
              size_field() == single_size, "must match");
       break;
     case T_ILLEGAL:
       // XXX TKR also means unknown right now
       // assert(is_illegal(), "must match");
       break;
     default:
       ShouldNotReachHere();
     }
   }
 #endif
 }
 #endif // PRODUCT
 bool LIR_OprDesc::is_oop() const {
   if (is_pointer()) {
     return pointer()->is_oop_pointer();
   } else {
     OprType t= type_field();
     assert(t != unknown_type, "not set");
     return t == object_type;
   }
 }
 #ifdef MIPS
 bool LIR_OprDesc::has_common_register(LIR_Opr opr) const {
   if (!(is_register() && opr->is_register())) return false;
   if (is_single_cpu()) {
     if (opr->is_single_cpu()) {
       return as_register() == opr->as_register();
     } else if (opr->is_double_cpu()) {
       Register dst = as_register();
       Register  lo = opr->as_register_lo();
 #ifdef _LP64
       if (dst == lo) return true;
 #else
       Register  hi = opr->as_register_hi();
       if (dst == lo || dst == hi) return true;
 #endif
     }
   } else if (is_double_cpu()) {
     Register dst_lo = as_register_lo();
 #ifndef _LP64
     Register dst_hi = as_register_hi();
 #endif
     if (opr->is_single_cpu()) {
       Register src = opr->as_register();
 #ifndef _LP64
       if (dst_lo == src || dst_hi == src) return true;
 #else
       if (dst_lo == src) return true;
 #endif
     } else if (opr->is_double_cpu()) {
       Register src_lo = opr->as_register_lo();
 #ifndef _LP64
       Register src_hi = opr->as_register_hi();
       if (dst_lo == src_lo ||
           dst_lo == src_hi ||
           dst_hi == src_lo ||
           dst_hi == src_hi) return true;
 #else
       if (dst_lo == src_lo) return true;
 #endif
     }
   } else if (is_double_fpu()) {
     if (opr->is_double_fpu()) {
       return as_double_reg() == opr->as_double_reg();
     } else if (opr->is_single_fpu()) {
       return as_double_reg() == opr->as_float_reg();
     }
   } else if (is_single_fpu()) {
     if (opr->is_single_fpu()) {
       return as_float_reg() == opr->as_float_reg();
     } else if (opr->is_double_fpu()) {
       return as_float_reg() == opr->as_double_reg();
     }
   }
   return false;
 }
 #endif
 void LIR_Op2::verify() const {
 #ifdef ASSERT
   switch (code()) {
     case lir_cmove:
     case lir_xchg:
       break;
     default:
       assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
              "can't produce oops from arith");
   }
   if (TwoOperandLIRForm) {
     switch (code()) {
     case lir_add:
     case lir_sub:
     case lir_mul:
     case lir_mul_strictfp:
     case lir_div:
     case lir_div_strictfp:
     case lir_rem:
     case lir_logic_and:
     case lir_logic_or:
     case lir_logic_xor:
     case lir_shl:
     case lir_shr:
       assert(in_opr1() == result_opr(), "opr1 and result must match");
       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
       break;
     // special handling for lir_ushr because of write barriers
     case lir_ushr:
       assert(in_opr1() == result_opr() || in_opr2()->is_constant(), "opr1 and result must match or shift count is constant");
       assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
       break;
     }
   }
 #endif
 }
 #ifndef MIPS
 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block)
   : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
   , _cond(cond)
   , _type(type)
   , _label(block->label())
   , _block(block)
   , _ublock(NULL)
   , _stub(NULL) {
 }
 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub) :
   LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
   , _cond(cond)
   , _type(type)
   , _label(stub->entry())
   , _block(NULL)
   , _ublock(NULL)
   , _stub(stub) {
 }
 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock)
   : LIR_Op(lir_cond_float_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
   , _cond(cond)
   , _type(type)
   , _label(block->label())
   , _block(block)
   , _ublock(ublock)
   , _stub(NULL)
 {
 }
 #else
 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, LIR_Opr left, LIR_Opr right, BasicType type,
   BlockBegin* block):
         LIR_Op2(lir_branch, left, right, LIR_OprFact::illegalOpr, (CodeEmitInfo *)(NULL)),
         _cond(cond),
         _type(type),
         _label(block->label()),
         _block(block),
         _ublock(NULL),
         _stub(NULL) {
 }
 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, LIR_Opr left, LIR_Opr right, BasicType type,
   CodeStub* stub):
         LIR_Op2(lir_branch, left, right, LIR_OprFact::illegalOpr, (CodeEmitInfo *)(NULL)),
         _cond(cond),
         _type(type),
         _label(stub->entry()),
         _block(NULL),
         _ublock(NULL),
         _stub(stub) {
 }
 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, LIR_Opr left, LIR_Opr right, BasicType type,
   BlockBegin *block, BlockBegin *ublock):
         LIR_Op2(lir_branch, left, right, LIR_OprFact::illegalOpr, (CodeEmitInfo *)(NULL)),
         _cond(cond),
         _type(type),
         _label(block->label()),
         _block(block),
         _ublock(ublock),
         _stub(NULL) {
 }
 #endif
 void LIR_OpBranch::change_block(BlockBegin* b) {
   assert(_block != NULL, "must have old block");
   assert(_block->label() == label(), "must be equal");
   _block = b;
   _label = b->label();
 }
 void LIR_OpBranch::change_ublock(BlockBegin* b) {
   assert(_ublock != NULL, "must have old block");
   _ublock = b;
 }
 void LIR_OpBranch::negate_cond() {
   switch (_cond) {
     case lir_cond_equal:        _cond = lir_cond_notEqual;     break;
     case lir_cond_notEqual:     _cond = lir_cond_equal;        break;
     case lir_cond_less:         _cond = lir_cond_greaterEqual; break;
     case lir_cond_lessEqual:    _cond = lir_cond_greater;      break;
     case lir_cond_greaterEqual: _cond = lir_cond_less;         break;
     case lir_cond_greater:      _cond = lir_cond_lessEqual;    break;
     default: ShouldNotReachHere();
   }
 }
 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
                                  LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
                                  bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
                                  CodeStub* stub)
   : LIR_Op(code, result, NULL)
   , _object(object)
   , _array(LIR_OprFact::illegalOpr)
   , _klass(klass)
   , _tmp1(tmp1)
   , _tmp2(tmp2)
   , _tmp3(tmp3)
   , _fast_check(fast_check)
   , _stub(stub)
   , _info_for_patch(info_for_patch)
   , _info_for_exception(info_for_exception)
   , _profiled_method(NULL)
   , _profiled_bci(-1)
   , _should_profile(false)
 {
   if (code == lir_checkcast) {
     assert(info_for_exception != NULL, "checkcast throws exceptions");
   } else if (code == lir_instanceof) {
     assert(info_for_exception == NULL, "instanceof throws no exceptions");
   } else {
     ShouldNotReachHere();
   }
 }
 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)
   : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
   , _object(object)
   , _array(array)
   , _klass(NULL)
   , _tmp1(tmp1)
   , _tmp2(tmp2)
   , _tmp3(tmp3)
   , _fast_check(false)
   , _stub(NULL)
   , _info_for_patch(NULL)
   , _info_for_exception(info_for_exception)
   , _profiled_method(NULL)
   , _profiled_bci(-1)
   , _should_profile(false)
 {
   if (code == lir_store_check) {
     _stub = new ArrayStoreExceptionStub(object, info_for_exception);
     assert(info_for_exception != NULL, "store_check throws exceptions");
   } else {
     ShouldNotReachHere();
   }
 }
 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
                                  LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
   : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
   , _tmp(tmp)
   , _src(src)
   , _src_pos(src_pos)
   , _dst(dst)
   , _dst_pos(dst_pos)
   , _flags(flags)
   , _expected_type(expected_type)
   , _length(length) {
   _stub = new ArrayCopyStub(this);
 }
 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
   : LIR_Op(lir_updatecrc32, res, NULL)
   , _crc(crc)
   , _val(val) {
 }
 //-------------------verify--------------------------
 void LIR_Op1::verify() const {
   switch(code()) {
   case lir_move:
     assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
     break;
   case lir_null_check:
     assert(in_opr()->is_register(), "must be");
     break;
   case lir_return:
     assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
     break;
   }
 }
 void LIR_OpRTCall::verify() const {
   assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
 }
 //-------------------visits--------------------------
 // complete rework of LIR instruction visitor.
 // The virtual call for each instruction type is replaced by a big
 // switch that adds the operands for each instruction
 void LIR_OpVisitState::visit(LIR_Op* op) {
   // copy information from the LIR_Op
   reset();
   set_op(op);
   switch (op->code()) {
 // LIR_Op0
     case lir_word_align:               // result and info always invalid
     case lir_backwardbranch_target:    // result and info always invalid
     case lir_build_frame:              // result and info always invalid
     case lir_fpop_raw:                 // result and info always invalid
     case lir_24bit_FPU:                // result and info always invalid
     case lir_reset_FPU:                // result and info always invalid
     case lir_breakpoint:               // result and info always invalid
     case lir_membar:                   // result and info always invalid
     case lir_membar_acquire:           // result and info always invalid
     case lir_membar_release:           // result and info always invalid
     case lir_membar_loadload:          // result and info always invalid
     case lir_membar_storestore:        // result and info always invalid
     case lir_membar_loadstore:         // result and info always invalid
     case lir_membar_storeload:         // result and info always invalid
     {
       assert(op->as_Op0() != NULL, "must be");
       assert(op->_info == NULL, "info not used by this instruction");
       assert(op->_result->is_illegal(), "not used");
       break;
     }
     case lir_nop:                      // may have info, result always invalid
     case lir_std_entry:                // may have result, info always invalid
     case lir_osr_entry:                // may have result, info always invalid
     case lir_get_thread:               // may have result, info always invalid
     {
       assert(op->as_Op0() != NULL, "must be");
       if (op->_info != NULL)           do_info(op->_info);
       if (op->_result->is_valid())     do_output(op->_result);
       break;
     }
 // LIR_OpLabel
     case lir_label:                    // result and info always invalid
     {
       assert(op->as_OpLabel() != NULL, "must be");
       assert(op->_info == NULL, "info not used by this instruction");
       assert(op->_result->is_illegal(), "not used");
       break;
     }
 // LIR_Op1
     case lir_fxch:           // input always valid, result and info always invalid
     case lir_fld:            // input always valid, result and info always invalid
     case lir_ffree:          // input always valid, result and info always invalid
     case lir_push:           // input always valid, result and info always invalid
     case lir_pop:            // input always valid, result and info always invalid
     case lir_return:         // input always valid, result and info always invalid
     case lir_leal:           // input and result always valid, info always invalid
     case lir_neg:            // input and result always valid, info always invalid
     case lir_monaddr:        // input and result always valid, info always invalid
     case lir_null_check:     // input and info always valid, result always invalid
     case lir_move:           // input and result always valid, may have info
     case lir_pack64:         // input and result always valid
     case lir_unpack64:       // input and result always valid
     case lir_prefetchr:      // input always valid, result and info always invalid
     case lir_prefetchw:      // input always valid, result and info always invalid
     {
       assert(op->as_Op1() != NULL, "must be");
       LIR_Op1* op1 = (LIR_Op1*)op;
       if (op1->_info)                  do_info(op1->_info);
       if (op1->_opr->is_valid())       do_input(op1->_opr);
       if (op1->_result->is_valid())    do_output(op1->_result);
       break;
     }
     case lir_safepoint:
     {
       assert(op->as_Op1() != NULL, "must be");
       LIR_Op1* op1 = (LIR_Op1*)op;
       assert(op1->_info != NULL, "");  do_info(op1->_info);
       if (op1->_opr->is_valid())       do_temp(op1->_opr); // safepoints on SPARC need temporary register
       assert(op1->_result->is_illegal(), "safepoint does not produce value");
       break;
     }
 // LIR_OpConvert;
     case lir_convert:        // input and result always valid, info always invalid
     {
       assert(op->as_OpConvert() != NULL, "must be");
       LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
       assert(opConvert->_info == NULL, "must be");
       if (opConvert->_opr->is_valid())       do_input(opConvert->_opr);
       if (opConvert->_result->is_valid())    do_output(opConvert->_result);
 #ifdef PPC
       if (opConvert->_tmp1->is_valid())      do_temp(opConvert->_tmp1);
       if (opConvert->_tmp2->is_valid())      do_temp(opConvert->_tmp2);
 #endif
       do_stub(opConvert->_stub);
       break;
     }
 // LIR_OpBranch;
     case lir_branch:                   // may have info, input and result register always invalid
     case lir_cond_float_branch:        // may have info, input and result register always invalid
     {
       assert(op->as_OpBranch() != NULL, "must be");
       LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
 #ifdef MIPS
       if (opBranch->_opr1->is_valid())         do_input(opBranch->_opr1);
       if (opBranch->_opr2->is_valid())         do_input(opBranch->_opr2);
       if (opBranch->_tmp1->is_valid())          do_temp(opBranch->_tmp1);
       if (opBranch->_tmp2->is_valid())          do_temp(opBranch->_tmp2);
       if (opBranch->_tmp3->is_valid())          do_temp(opBranch->_tmp3);
       if (opBranch->_tmp4->is_valid())          do_temp(opBranch->_tmp4);
       if (opBranch->_tmp5->is_valid())          do_temp(opBranch->_tmp5);
 #endif
       if (opBranch->_info != NULL)     do_info(opBranch->_info);
       assert(opBranch->_result->is_illegal(), "not used");
       if (opBranch->_stub != NULL)     opBranch->stub()->visit(this);
       break;
     }
 #ifdef MIPS
     case lir_cmove_mips:
     {
       assert(op->as_Op4() != NULL, "must be");
       LIR_Op4* op4 = (LIR_Op4*)op;
       assert(op4->_info == NULL, "must be");
       assert(op4->_opr1->is_valid() && op4->_opr2->is_valid() && op4->_opr3->is_valid() && op4->_opr4->is_valid() && op4->_result->is_valid(), "used");
       do_input(op4->_opr1);
       do_input(op4->_opr2);
       do_input(op4->_opr3);
       do_input(op4->_opr4);
       if (op4->_tmp1->is_valid())  do_temp(op4->_tmp1);
       if (op4->_tmp2->is_valid())  do_temp(op4->_tmp2);
       if (op4->_tmp3->is_valid())  do_temp(op4->_tmp3);
       if (op4->_tmp4->is_valid())  do_temp(op4->_tmp4);
       if (op4->_tmp5->is_valid())  do_temp(op4->_tmp5);
       do_output(op4->_result);
       break;
     }
 #endif
 // LIR_OpAllocObj
     case lir_alloc_object:
     {
       assert(op->as_OpAllocObj() != NULL, "must be");
       LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
       if (opAllocObj->_info)                     do_info(opAllocObj->_info);
       if (opAllocObj->_opr->is_valid()) {        do_input(opAllocObj->_opr);
                                                  do_temp(opAllocObj->_opr);
                                         }
       if (opAllocObj->_tmp1->is_valid())         do_temp(opAllocObj->_tmp1);
       if (opAllocObj->_tmp2->is_valid())         do_temp(opAllocObj->_tmp2);
       if (opAllocObj->_tmp3->is_valid())         do_temp(opAllocObj->_tmp3);
       if (opAllocObj->_tmp4->is_valid())         do_temp(opAllocObj->_tmp4);
 #ifdef MIPS
       if (opAllocObj->_tmp5->is_valid())         do_temp(opAllocObj->_tmp5);
       if (opAllocObj->_tmp6->is_valid())         do_temp(opAllocObj->_tmp6);
 #endif
       if (opAllocObj->_result->is_valid())       do_output(opAllocObj->_result);
                                                  do_stub(opAllocObj->_stub);
       break;
     }
 // LIR_OpRoundFP;
     case lir_roundfp: {
       assert(op->as_OpRoundFP() != NULL, "must be");
       LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
       assert(op->_info == NULL, "info not used by this instruction");
       assert(opRoundFP->_tmp->is_illegal(), "not used");
       do_input(opRoundFP->_opr);
       do_output(opRoundFP->_result);
       break;
     }
 // LIR_Op2
 #ifdef MIPS
     case lir_null_check_for_branch:
 #else
     case lir_cmp:
 #endif
     case lir_cmp_l2i:
     case lir_ucmp_fd2i:
     case lir_cmp_fd2i:
     case lir_add:
     case lir_sub:
     case lir_mul:
     case lir_div:
     case lir_rem:
     case lir_sqrt:
     case lir_abs:
     case lir_logic_and:
     case lir_logic_or:
     case lir_logic_xor:
     case lir_shl:
     case lir_shr:
     case lir_ushr:
     case lir_xadd:
     case lir_xchg:
     case lir_assert:
     {
       assert(op->as_Op2() != NULL, "must be");
       LIR_Op2* op2 = (LIR_Op2*)op;
       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
       if (op2->_info)                     do_info(op2->_info);
       if (op2->_opr1->is_valid())         do_input(op2->_opr1);
       if (op2->_opr2->is_valid())         do_input(op2->_opr2);
       if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
       if (op2->_result->is_valid())       do_output(op2->_result);
       if (op->code() == lir_xchg || op->code() == lir_xadd) {
         // on ARM and PPC, return value is loaded first so could
         // destroy inputs. On other platforms that implement those
         // (x86, sparc), the extra constrainsts are harmless.
         if (op2->_opr1->is_valid())       do_temp(op2->_opr1);
         if (op2->_opr2->is_valid())       do_temp(op2->_opr2);
       }
       break;
     }
     // special handling for cmove: right input operand must not be equal
     // to the result operand, otherwise the backend fails
     case lir_cmove:
     {
       assert(op->as_Op2() != NULL, "must be");
       LIR_Op2* op2 = (LIR_Op2*)op;
       assert(op2->_info == NULL && op2->_tmp1->is_illegal() && op2->_tmp2->is_illegal() &&
              op2->_tmp3->is_illegal() && op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
       do_input(op2->_opr1);
       do_input(op2->_opr2);
       do_temp(op2->_opr2);
       do_output(op2->_result);
       break;
     }
     // vspecial handling for strict operations: register input operands
     // as temp to guarantee that they do not overlap with other
     // registers
     case lir_mul_strictfp:
     case lir_div_strictfp:
     {
       assert(op->as_Op2() != NULL, "must be");
       LIR_Op2* op2 = (LIR_Op2*)op;
       assert(op2->_info == NULL, "not used");
       assert(op2->_opr1->is_valid(), "used");
       assert(op2->_opr2->is_valid(), "used");
       assert(op2->_result->is_valid(), "used");
       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
       do_input(op2->_opr1); do_temp(op2->_opr1);
       do_input(op2->_opr2); do_temp(op2->_opr2);
       if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
       do_output(op2->_result);
       break;
     }
     case lir_throw: {
       assert(op->as_Op2() != NULL, "must be");
       LIR_Op2* op2 = (LIR_Op2*)op;
       if (op2->_info)                     do_info(op2->_info);
       if (op2->_opr1->is_valid())         do_temp(op2->_opr1);
       if (op2->_opr2->is_valid())         do_input(op2->_opr2); // exception object is input parameter
       assert(op2->_result->is_illegal(), "no result");
       assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
              op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
       break;
     }
     case lir_unwind: {
       assert(op->as_Op1() != NULL, "must be");
       LIR_Op1* op1 = (LIR_Op1*)op;
       assert(op1->_info == NULL, "no info");
       assert(op1->_opr->is_valid(), "exception oop");         do_input(op1->_opr);
       assert(op1->_result->is_illegal(), "no result");
       break;
     }
     case lir_tan:
     case lir_sin:
     case lir_cos:
     case lir_log:
     case lir_log10:
     case lir_exp: {
       assert(op->as_Op2() != NULL, "must be");
       LIR_Op2* op2 = (LIR_Op2*)op;
       // On x86 tan/sin/cos need two temporary fpu stack slots and
       // log/log10 need one so handle opr2 and tmp as temp inputs.
       // Register input operand as temp to guarantee that it doesn't
       // overlap with the input.
       assert(op2->_info == NULL, "not used");
       assert(op2->_tmp5->is_illegal(), "not used");
       assert(op2->_tmp2->is_valid() == (op->code() == lir_exp), "not used");
       assert(op2->_tmp3->is_valid() == (op->code() == lir_exp), "not used");
       assert(op2->_tmp4->is_valid() == (op->code() == lir_exp), "not used");
       assert(op2->_opr1->is_valid(), "used");
       do_input(op2->_opr1); do_temp(op2->_opr1);
       if (op2->_opr2->is_valid())         do_temp(op2->_opr2);
       if (op2->_tmp1->is_valid())         do_temp(op2->_tmp1);
       if (op2->_tmp2->is_valid())         do_temp(op2->_tmp2);
       if (op2->_tmp3->is_valid())         do_temp(op2->_tmp3);
       if (op2->_tmp4->is_valid())         do_temp(op2->_tmp4);
       if (op2->_result->is_valid())       do_output(op2->_result);
       break;
     }
     case lir_pow: {
       assert(op->as_Op2() != NULL, "must be");
       LIR_Op2* op2 = (LIR_Op2*)op;
       // On x86 pow needs two temporary fpu stack slots: tmp1 and
       // tmp2. Register input operands as temps to guarantee that it
       // doesn't overlap with the temporary slots.
       assert(op2->_info == NULL, "not used");
       assert(op2->_opr1->is_valid() && op2->_opr2->is_valid(), "used");
       assert(op2->_tmp1->is_valid() && op2->_tmp2->is_valid() && op2->_tmp3->is_valid()
              && op2->_tmp4->is_valid() && op2->_tmp5->is_valid(), "used");
       assert(op2->_result->is_valid(), "used");
       do_input(op2->_opr1); do_temp(op2->_opr1);
       do_input(op2->_opr2); do_temp(op2->_opr2);
       do_temp(op2->_tmp1);
       do_temp(op2->_tmp2);
       do_temp(op2->_tmp3);
       do_temp(op2->_tmp4);
       do_temp(op2->_tmp5);
       do_output(op2->_result);
       break;
     }
 // LIR_Op3
 #ifdef MIPS
     case lir_frem:
 #endif
     case lir_idiv:
     case lir_irem: {
       assert(op->as_Op3() != NULL, "must be");
       LIR_Op3* op3= (LIR_Op3*)op;
       if (op3->_info)                     do_info(op3->_info);
       if (op3->_opr1->is_valid())         do_input(op3->_opr1);
       // second operand is input and temp, so ensure that second operand
       // and third operand get not the same register
       if (op3->_opr2->is_valid())         do_input(op3->_opr2);
       if (op3->_opr2->is_valid())         do_temp(op3->_opr2);
       if (op3->_opr3->is_valid())         do_temp(op3->_opr3);
       if (op3->_result->is_valid())       do_output(op3->_result);
       break;
     }
 // LIR_OpJavaCall
     case lir_static_call:
     case lir_optvirtual_call:
     case lir_icvirtual_call:
     case lir_virtual_call:
     case lir_dynamic_call: {
       LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
       assert(opJavaCall != NULL, "must be");
       if (opJavaCall->_receiver->is_valid())     do_input(opJavaCall->_receiver);
       // only visit register parameters
       int n = opJavaCall->_arguments->length();
       for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
         if (!opJavaCall->_arguments->at(i)->is_pointer()) {
           do_input(*opJavaCall->_arguments->adr_at(i));
         }
       }
       if (opJavaCall->_info)                     do_info(opJavaCall->_info);
       if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
           opJavaCall->is_method_handle_invoke()) {
         opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
         do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
       }
       do_call();
       if (opJavaCall->_result->is_valid())       do_output(opJavaCall->_result);
       break;
     }
 // LIR_OpRTCall
     case lir_rtcall: {
       assert(op->as_OpRTCall() != NULL, "must be");
       LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
       // only visit register parameters
       int n = opRTCall->_arguments->length();
       for (int i = 0; i < n; i++) {
         if (!opRTCall->_arguments->at(i)->is_pointer()) {
           do_input(*opRTCall->_arguments->adr_at(i));
         }
       }
       if (opRTCall->_info)                     do_info(opRTCall->_info);
       if (opRTCall->_tmp->is_valid())          do_temp(opRTCall->_tmp);
       do_call();
       if (opRTCall->_result->is_valid())       do_output(opRTCall->_result);
       break;
     }
 // LIR_OpArrayCopy
     case lir_arraycopy: {
       assert(op->as_OpArrayCopy() != NULL, "must be");
       LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
       assert(opArrayCopy->_result->is_illegal(), "unused");
       assert(opArrayCopy->_src->is_valid(), "used");          do_input(opArrayCopy->_src);     do_temp(opArrayCopy->_src);
       assert(opArrayCopy->_src_pos->is_valid(), "used");      do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
       assert(opArrayCopy->_dst->is_valid(), "used");          do_input(opArrayCopy->_dst);     do_temp(opArrayCopy->_dst);
       assert(opArrayCopy->_dst_pos->is_valid(), "used");      do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
       assert(opArrayCopy->_length->is_valid(), "used");       do_input(opArrayCopy->_length);  do_temp(opArrayCopy->_length);
 #ifndef MIPS
       assert(opArrayCopy->_tmp->is_valid(), "used");          do_temp(opArrayCopy->_tmp);
 #endif
       if (opArrayCopy->_info)                     do_info(opArrayCopy->_info);
       // the implementation of arraycopy always has a call into the runtime
       do_call();
       break;
     }
 // LIR_OpUpdateCRC32
     case lir_updatecrc32: {
       assert(op->as_OpUpdateCRC32() != NULL, "must be");
       LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
       assert(opUp->_crc->is_valid(), "used");          do_input(opUp->_crc);     do_temp(opUp->_crc);
       assert(opUp->_val->is_valid(), "used");          do_input(opUp->_val);     do_temp(opUp->_val);
       assert(opUp->_result->is_valid(), "used");       do_output(opUp->_result);
       assert(opUp->_info == NULL, "no info for LIR_OpUpdateCRC32");
       break;
     }
 // LIR_OpLock
     case lir_lock:
     case lir_unlock: {
       assert(op->as_OpLock() != NULL, "must be");
       LIR_OpLock* opLock = (LIR_OpLock*)op;
       if (opLock->_info)                          do_info(opLock->_info);
       // TODO: check if these operands really have to be temp
       // (or if input is sufficient). This may have influence on the oop map!
       assert(opLock->_lock->is_valid(), "used");  do_temp(opLock->_lock);
       assert(opLock->_hdr->is_valid(),  "used");  do_temp(opLock->_hdr);
       assert(opLock->_obj->is_valid(),  "used");  do_temp(opLock->_obj);
       if (opLock->_scratch->is_valid())           do_temp(opLock->_scratch);
       assert(opLock->_result->is_illegal(), "unused");
       do_stub(opLock->_stub);
       break;
     }
 // LIR_OpDelay
     case lir_delay_slot: {
       assert(op->as_OpDelay() != NULL, "must be");
       LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
       visit(opDelay->delay_op());
       break;
     }
 // LIR_OpTypeCheck
     case lir_instanceof:
     case lir_checkcast:
     case lir_store_check: {
       assert(op->as_OpTypeCheck() != NULL, "must be");
       LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
       if (opTypeCheck->_info_for_exception)       do_info(opTypeCheck->_info_for_exception);
       if (opTypeCheck->_info_for_patch)           do_info(opTypeCheck->_info_for_patch);
       if (opTypeCheck->_object->is_valid())       do_input(opTypeCheck->_object);
       if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
         do_temp(opTypeCheck->_object);
       }
       if (opTypeCheck->_array->is_valid())        do_input(opTypeCheck->_array);
       if (opTypeCheck->_tmp1->is_valid())         do_temp(opTypeCheck->_tmp1);
       if (opTypeCheck->_tmp2->is_valid())         do_temp(opTypeCheck->_tmp2);
       if (opTypeCheck->_tmp3->is_valid())         do_temp(opTypeCheck->_tmp3);
       if (opTypeCheck->_result->is_valid())       do_output(opTypeCheck->_result);
                                                   do_stub(opTypeCheck->_stub);
       break;
     }
 // LIR_OpCompareAndSwap
     case lir_cas_long:
     case lir_cas_obj:
     case lir_cas_int: {
       assert(op->as_OpCompareAndSwap() != NULL, "must be");
       LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
       assert(opCompareAndSwap->_addr->is_valid(),      "used");
       assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
       assert(opCompareAndSwap->_new_value->is_valid(), "used");
       if (opCompareAndSwap->_info)                    do_info(opCompareAndSwap->_info);
                                                       do_input(opCompareAndSwap->_addr);
                                                       do_temp(opCompareAndSwap->_addr);
                                                       do_input(opCompareAndSwap->_cmp_value);
                                                       do_temp(opCompareAndSwap->_cmp_value);
                                                       do_input(opCompareAndSwap->_new_value);
                                                       do_temp(opCompareAndSwap->_new_value);
       if (opCompareAndSwap->_tmp1->is_valid())        do_temp(opCompareAndSwap->_tmp1);
       if (opCompareAndSwap->_tmp2->is_valid())        do_temp(opCompareAndSwap->_tmp2);
       if (opCompareAndSwap->_result->is_valid())      do_output(opCompareAndSwap->_result);
       break;
     }
 // LIR_OpAllocArray;
     case lir_alloc_array: {
       assert(op->as_OpAllocArray() != NULL, "must be");
       LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
       if (opAllocArray->_info)                        do_info(opAllocArray->_info);
       if (opAllocArray->_klass->is_valid())           do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
       if (opAllocArray->_len->is_valid())             do_input(opAllocArray->_len);   do_temp(opAllocArray->_len);
       if (opAllocArray->_tmp1->is_valid())            do_temp(opAllocArray->_tmp1);
       if (opAllocArray->_tmp2->is_valid())            do_temp(opAllocArray->_tmp2);
       if (opAllocArray->_tmp3->is_valid())            do_temp(opAllocArray->_tmp3);
       if (opAllocArray->_tmp4->is_valid())            do_temp(opAllocArray->_tmp4);
 #ifdef MIPS
       if (opAllocArray->_tmp5->is_valid())            do_temp(opAllocArray->_tmp5);
 #endif
       if (opAllocArray->_result->is_valid())          do_output(opAllocArray->_result);
                                                       do_stub(opAllocArray->_stub);
       break;
     }
 // LIR_OpProfileCall:
     case lir_profile_call: {
       assert(op->as_OpProfileCall() != NULL, "must be");
       LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
       if (opProfileCall->_recv->is_valid())              do_temp(opProfileCall->_recv);
       assert(opProfileCall->_mdo->is_valid(), "used");   do_temp(opProfileCall->_mdo);
       assert(opProfileCall->_tmp1->is_valid(), "used");  do_temp(opProfileCall->_tmp1);
       break;
     }
 // LIR_OpProfileType:
     case lir_profile_type: {
       assert(op->as_OpProfileType() != NULL, "must be");
       LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
       do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
       do_input(opProfileType->_obj);
       do_temp(opProfileType->_tmp);
       break;
     }
   default:
     ShouldNotReachHere();
   }
 }
 void LIR_OpVisitState::do_stub(CodeStub* stub) {
   if (stub != NULL) {
     stub->visit(this);
   }
 }
 XHandlers* LIR_OpVisitState::all_xhandler() {
   XHandlers* result = NULL;
   int i;
   for (i = 0; i < info_count(); i++) {
     if (info_at(i)->exception_handlers() != NULL) {
       result = info_at(i)->exception_handlers();
       break;
     }
   }
 #ifdef ASSERT
   for (i = 0; i < info_count(); i++) {
     assert(info_at(i)->exception_handlers() == NULL ||
            info_at(i)->exception_handlers() == result,
            "only one xhandler list allowed per LIR-operation");
   }
 #endif
   if (result != NULL) {
     return result;
   } else {
     return new XHandlers();
   }
   return result;
 }
 #ifdef ASSERT
 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
   visit(op);
   return opr_count(inputMode) == 0 &&
          opr_count(outputMode) == 0 &&
          opr_count(tempMode) == 0 &&
          info_count() == 0 &&
          !has_call() &&
          !has_slow_case();
 }
 #endif
 //---------------------------------------------------
 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
   masm->emit_call(this);
 }
 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
   masm->emit_rtcall(this);
 }
 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
   masm->emit_opLabel(this);
 }
 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
   masm->emit_arraycopy(this);
   masm->append_code_stub(stub());
 }
 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
   masm->emit_updatecrc32(this);
 }
 void LIR_Op0::emit_code(LIR_Assembler* masm) {
   masm->emit_op0(this);
 }
 void LIR_Op1::emit_code(LIR_Assembler* masm) {
   masm->emit_op1(this);
 }
 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
   masm->emit_alloc_obj(this);
   masm->append_code_stub(stub());
 }
 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
   masm->emit_opBranch(this);
   if (stub()) {
     masm->append_code_stub(stub());
   }
 }
 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
   masm->emit_opConvert(this);
   if (stub() != NULL) {
     masm->append_code_stub(stub());
   }
 }
 void LIR_Op2::emit_code(LIR_Assembler* masm) {
   masm->emit_op2(this);
 }
 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
   masm->emit_alloc_array(this);
   masm->append_code_stub(stub());
 }
 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
   masm->emit_opTypeCheck(this);
   if (stub()) {
     masm->append_code_stub(stub());
   }
 }
 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
   masm->emit_compare_and_swap(this);
 }
 void LIR_Op3::emit_code(LIR_Assembler* masm) {
   masm->emit_op3(this);
 }
 #ifdef MIPS
 void LIR_Op4::emit_code(LIR_Assembler* masm) {
   masm->emit_op4(this);
 }
 #endif
 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
   masm->emit_lock(this);
   if (stub()) {
     masm->append_code_stub(stub());
   }
 }
 #ifdef ASSERT
 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
   masm->emit_assert(this);
 }
 #endif
 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
   masm->emit_delay(this);
 }
 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
   masm->emit_profile_call(this);
 }
 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
   masm->emit_profile_type(this);
 }
 // LIR_List
 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
   : _operations(8)
   , _compilation(compilation)
 #ifndef PRODUCT
   , _block(block)
 #endif
 #ifdef ASSERT
   , _file(NULL)
   , _line(0)
 #endif
 { }
 #ifdef ASSERT
 void LIR_List::set_file_and_line(const char * file, int line) {
   const char * f = strrchr(file, '/');
   if (f == NULL) f = strrchr(file, '\\');
   if (f == NULL) {
     f = file;
   } else {
     f++;
   }
   _file = f;
   _line = line;
 }
 #endif
 void LIR_List::append(LIR_InsertionBuffer* buffer) {
   assert(this == buffer->lir_list(), "wrong lir list");
   const int n = _operations.length();
   if (buffer->number_of_ops() > 0) {
     // increase size of instructions list
     _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
     // insert ops from buffer into instructions list
     int op_index = buffer->number_of_ops() - 1;
     int ip_index = buffer->number_of_insertion_points() - 1;
     int from_index = n - 1;
     int to_index = _operations.length() - 1;
     for (; ip_index >= 0; ip_index --) {
       int index = buffer->index_at(ip_index);
       // make room after insertion point
       while (index < from_index) {
         _operations.at_put(to_index --, _operations.at(from_index --));
       }
       // insert ops from buffer
       for (int i = buffer->count_at(ip_index); i > 0; i --) {
         _operations.at_put(to_index --, buffer->op_at(op_index --));
       }
     }
   }
   buffer->finish();
 }
 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
   assert(reg->type() == T_OBJECT, "bad reg");
   append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o),  reg, T_OBJECT, lir_patch_normal, info));
 }
 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
   assert(reg->type() == T_METADATA, "bad reg");
   append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
 }
 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
   append(new LIR_Op1(
             lir_move,
             LIR_OprFact::address(addr),
             src,
             addr->type(),
             patch_code,
             info));
 }
 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
   append(new LIR_Op1(
             lir_move,
             LIR_OprFact::address(address),
             dst,
             address->type(),
             patch_code,
             info, lir_move_volatile));
 }
 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
 #ifdef MIPS
   add(base, offset, base);
   offset = 0;
 #endif
   append(new LIR_Op1(
             lir_move,
             LIR_OprFact::address(new LIR_Address(base, offset, type)),
             dst,
             type,
             patch_code,
             info, lir_move_volatile));
 }
 void LIR_List::prefetch(LIR_Address* addr, bool is_store) {
   append(new LIR_Op1(
             is_store ? lir_prefetchw : lir_prefetchr,
             LIR_OprFact::address(addr)));
 }
 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
   append(new LIR_Op1(
             lir_move,
             LIR_OprFact::intConst(v),
             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
             type,
             patch_code,
             info));
 }
 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
   append(new LIR_Op1(
             lir_move,
             LIR_OprFact::oopConst(o),
             LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
             type,
             patch_code,
             info));
 }
 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
   append(new LIR_Op1(
             lir_move,
             src,
             LIR_OprFact::address(addr),
             addr->type(),
             patch_code,
             info));
 }
 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
   append(new LIR_Op1(
             lir_move,
             src,
             LIR_OprFact::address(addr),
             addr->type(),
             patch_code,
             info,
             lir_move_volatile));
 }
 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
 #ifdef MIPS
   add(base, offset, base);
   offset = 0;
 #endif
   append(new LIR_Op1(
             lir_move,
             src,
             LIR_OprFact::address(new LIR_Address(base, offset, type)),
             type,
             patch_code,
             info, lir_move_volatile));
 }
 #ifdef MIPS
 void LIR_List::frem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
   append(new LIR_Op3(
                     lir_frem,
                     left,
                     right,
                     tmp,
                     res,
                     info));
 }
 #endif
 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
   append(new LIR_Op3(
                     lir_idiv,
                     left,
                     right,
                     tmp,
                     res,
                     info));
 }
 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
   append(new LIR_Op3(
                     lir_idiv,
                     left,
                     LIR_OprFact::intConst(right),
                     tmp,
                     res,
                     info));
 }
 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
   append(new LIR_Op3(
                     lir_irem,
                     left,
                     right,
                     tmp,
                     res,
                     info));
 }
 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
   append(new LIR_Op3(
                     lir_irem,
                     left,
                     LIR_OprFact::intConst(right),
                     tmp,
                     res,
                     info));
 }
 #ifndef MIPS
 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
   append(new LIR_Op2(
                     lir_cmp,
                     condition,
                     LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
                     LIR_OprFact::intConst(c),
                     info));
 }
 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
   append(new LIR_Op2(
                     lir_cmp,
                     condition,
                     reg,
                     LIR_OprFact::address(addr),
                     info));
 }
 #endif
 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
   if (deoptimize_on_null) {
     // Emit an explicit null check and deoptimize if opr is null
     CodeStub* deopt = new DeoptimizeStub(info);
 #ifndef MIPS
     cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
     branch(lir_cond_equal, T_OBJECT, deopt);
 #else
     null_check_for_branch(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
     branch(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL), T_OBJECT, deopt);
 #endif
   } else {
     // Emit an implicit null check
     append(new LIR_Op1(lir_null_check, opr, info));
   }
 }
 #ifndef MIPS
 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
                                int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
   append(new LIR_OpAllocObj(
                            klass,
                            dst,
                            t1,
                            t2,
                            t3,
                            t4,
                            header_size,
                            object_size,
                            init_check,
                            stub));
 }
 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) {
   append(new LIR_OpAllocArray(
                            klass,
                            len,
                            dst,
                            t1,
                            t2,
                            t3,
                            t4,
                            type,
                            stub));
 }
 #else
 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4, LIR_Opr t5, LIR_Opr t6,
                                 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
         append(new LIR_OpAllocObj(
                                 klass,
                                 dst,
                                 t1,
                                 t2,
                                 t3,
                                 t4,
                                 t5,
                                 t6,
                                 header_size,
                                 object_size,
                                 init_check,
                                 stub));
 }
 void LIR_List::allocate_array(LIR_Opr dst, LIR_Opr len, LIR_Opr t1,LIR_Opr t2, LIR_Opr t3,LIR_Opr t4, LIR_Opr t5,
                                 BasicType type, LIR_Opr klass, CodeStub* stub) {
         append(new LIR_OpAllocArray(
                                 klass,
                                 len,
                                 dst,
                                 t1,
                                 t2,
                                 t3,
                                 t4,
                                 t5,
                                 type,
                                 stub));
 }
 #endif
 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
  append(new LIR_Op2(
                     lir_shl,
                     value,
                     count,
                     dst,
                     tmp));
 }
 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
  append(new LIR_Op2(
                     lir_shr,
                     value,
                     count,
                     dst,
                     tmp));
 }
 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
  append(new LIR_Op2(
                     lir_ushr,
                     value,
                     count,
                     dst,
                     tmp));
 }
 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
   append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
                      left,
                      right,
                      dst));
 }
 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) {
   append(new LIR_OpLock(
                     lir_lock,
                     hdr,
                     obj,
                     lock,
                     scratch,
                     stub,
                     info));
 }
 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
   append(new LIR_OpLock(
                     lir_unlock,
                     hdr,
                     obj,
                     lock,
                     scratch,
                     stub,
                     NULL));
 }
 void check_LIR() {
   // cannot do the proper checking as PRODUCT and other modes return different results
   // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
 }
 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
                           LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
                           CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
                           ciMethod* profiled_method, int profiled_bci) {
   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
                                            tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub);
   if (profiled_method != NULL) {
     c->set_profiled_method(profiled_method);
     c->set_profiled_bci(profiled_bci);
     c->set_should_profile(true);
   }
   append(c);
 }
 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) {
   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
   if (profiled_method != NULL) {
     c->set_profiled_method(profiled_method);
     c->set_profiled_bci(profiled_bci);
     c->set_should_profile(true);
   }
   append(c);
 }
 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
                            CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
   LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
   if (profiled_method != NULL) {
     c->set_profiled_method(profiled_method);
     c->set_profiled_bci(profiled_bci);
     c->set_should_profile(true);
   }
   append(c);
 }
 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
                         LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
   append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
 }
 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
   append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
 }
 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
                        LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
   append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
 }
 #ifdef PRODUCT
 void print_LIR(BlockList* blocks) {
 }
 #else
 // LIR_OprDesc
 void LIR_OprDesc::print() const {
   print(tty);
 }
 void LIR_OprDesc::print(outputStream* out) const {
   if (is_illegal()) {
     return;
   }
   out->print("[");
   if (is_pointer()) {
     pointer()->print_value_on(out);
   } else if (is_single_stack()) {
     out->print("stack:%d", single_stack_ix());
   } else if (is_double_stack()) {
     out->print("dbl_stack:%d",double_stack_ix());
   } else if (is_virtual()) {
     out->print("R%d", vreg_number());
   } else if (is_single_cpu()) {
     out->print("%s", as_register()->name());
   } else if (is_double_cpu()) {
     out->print("%s", as_register_hi()->name());
     out->print("%s", as_register_lo()->name());
 #if defined(X86)
   } else if (is_single_xmm()) {
     out->print("%s", as_xmm_float_reg()->name());
   } else if (is_double_xmm()) {
     out->print("%s", as_xmm_double_reg()->name());
   } else if (is_single_fpu()) {
     out->print("fpu%d", fpu_regnr());
   } else if (is_double_fpu()) {
     out->print("fpu%d", fpu_regnrLo());
 #elif defined(ARM)
   } else if (is_single_fpu()) {
     out->print("s%d", fpu_regnr());
   } else if (is_double_fpu()) {
     out->print("d%d", fpu_regnrLo() >> 1);
 #else
   } else if (is_single_fpu()) {
     out->print("%s", as_float_reg()->name());
   } else if (is_double_fpu()) {
     out->print("%s", as_double_reg()->name());
 #endif
   } else if (is_illegal()) {
     out->print("-");
   } else {
     out->print("Unknown Operand");
   }
   if (!is_illegal()) {
     out->print("|%c", type_char());
   }
   if (is_register() && is_last_use()) {
     out->print("(last_use)");
   }
   out->print("]");
 }
 // LIR_Address
 void LIR_Const::print_value_on(outputStream* out) const {
   switch (type()) {
     case T_ADDRESS:out->print("address:%d",as_jint());          break;
     case T_INT:    out->print("int:%d",   as_jint());           break;
     case T_LONG:   out->print("lng:" JLONG_FORMAT, as_jlong()); break;
     case T_FLOAT:  out->print("flt:%f",   as_jfloat());         break;
     case T_DOUBLE: out->print("dbl:%f",   as_jdouble());        break;
     case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject()));        break;
     case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
     default:       out->print("%3d:0x" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
   }
 }
 // LIR_Address
 void LIR_Address::print_value_on(outputStream* out) const {
   out->print("Base:"); _base->print(out);
 #ifndef MIPS
   if (!_index->is_illegal()) {
     out->print(" Index:"); _index->print(out);
     switch (scale()) {
     case times_1: break;
     case times_2: out->print(" * 2"); break;
     case times_4: out->print(" * 4"); break;
     case times_8: out->print(" * 8"); break;
     }
   }
 #endif
   out->print(" Disp: " INTX_FORMAT, _disp);
 }
 // debug output of block header without InstructionPrinter
 //       (because phi functions are not necessary for LIR)
 static void print_block(BlockBegin* x) {
   // print block id
   BlockEnd* end = x->end();
   tty->print("B%d ", x->block_id());
   // print flags
   if (x->is_set(BlockBegin::std_entry_flag))               tty->print("std ");
   if (x->is_set(BlockBegin::osr_entry_flag))               tty->print("osr ");
   if (x->is_set(BlockBegin::exception_entry_flag))         tty->print("ex ");
   if (x->is_set(BlockBegin::subroutine_entry_flag))        tty->print("jsr ");
   if (x->is_set(BlockBegin::backward_branch_target_flag))  tty->print("bb ");
   if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
   if (x->is_set(BlockBegin::linear_scan_loop_end_flag))    tty->print("le ");
   // print block bci range
   tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
   // print predecessors and successors
   if (x->number_of_preds() > 0) {
     tty->print("preds: ");
     for (int i = 0; i < x->number_of_preds(); i ++) {
       tty->print("B%d ", x->pred_at(i)->block_id());
     }
   }
   if (x->number_of_sux() > 0) {
     tty->print("sux: ");
     for (int i = 0; i < x->number_of_sux(); i ++) {
       tty->print("B%d ", x->sux_at(i)->block_id());
     }
   }
   // print exception handlers
   if (x->number_of_exception_handlers() > 0) {
     tty->print("xhandler: ");
     for (int i = 0; i < x->number_of_exception_handlers();  i++) {
       tty->print("B%d ", x->exception_handler_at(i)->block_id());
     }
   }
   tty->cr();
 }
 void print_LIR(BlockList* blocks) {
   tty->print_cr("LIR:");
   int i;
   for (i = 0; i < blocks->length(); i++) {
     BlockBegin* bb = blocks->at(i);
     print_block(bb);
     tty->print("__id_Instruction___________________________________________"); tty->cr();
     bb->lir()->print_instructions();
   }
 }
 void LIR_List::print_instructions() {
   for (int i = 0; i < _operations.length(); i++) {
     _operations.at(i)->print(); tty->cr();
   }
   tty->cr();
 }
 // LIR_Ops printing routines
 // LIR_Op
 void LIR_Op::print_on(outputStream* out) const {
   if (id() != -1 || PrintCFGToFile) {
     out->print("%4d ", id());
   } else {
     out->print("     ");
   }
   out->print("%s ", name());
   print_instr(out);
   if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
 #ifdef ASSERT
   if (Verbose && _file != NULL) {
     out->print(" (%s:%d)", _file, _line);
   }
 #endif
 }
 const char * LIR_Op::name() const {
   const char* s = NULL;
   switch(code()) {
      // LIR_Op0
      case lir_membar:                s = "membar";        break;
      case lir_membar_acquire:        s = "membar_acquire"; break;
      case lir_membar_release:        s = "membar_release"; break;
      case lir_membar_loadload:       s = "membar_loadload";   break;
      case lir_membar_storestore:     s = "membar_storestore"; break;
      case lir_membar_loadstore:      s = "membar_loadstore";  break;
      case lir_membar_storeload:      s = "membar_storeload";  break;
      case lir_word_align:            s = "word_align";    break;
      case lir_label:                 s = "label";         break;
      case lir_nop:                   s = "nop";           break;
      case lir_backwardbranch_target: s = "backbranch";    break;
      case lir_std_entry:             s = "std_entry";     break;
      case lir_osr_entry:             s = "osr_entry";     break;
      case lir_build_frame:           s = "build_frm";     break;
      case lir_fpop_raw:              s = "fpop_raw";      break;
      case lir_24bit_FPU:             s = "24bit_FPU";     break;
      case lir_reset_FPU:             s = "reset_FPU";     break;
      case lir_breakpoint:            s = "breakpoint";    break;
      case lir_get_thread:            s = "get_thread";    break;
      // LIR_Op1
      case lir_fxch:                  s = "fxch";          break;
      case lir_fld:                   s = "fld";           break;
      case lir_ffree:                 s = "ffree";         break;
      case lir_push:                  s = "push";          break;
      case lir_pop:                   s = "pop";           break;
      case lir_null_check:            s = "null_check";    break;
      case lir_return:                s = "return";        break;
      case lir_safepoint:             s = "safepoint";     break;
      case lir_neg:                   s = "neg";           break;
      case lir_leal:                  s = "leal";          break;
      case lir_branch:                s = "branch";        break;
      case lir_cond_float_branch:     s = "flt_cond_br";   break;
      case lir_move:                  s = "move";          break;
      case lir_roundfp:               s = "roundfp";       break;
      case lir_rtcall:                s = "rtcall";        break;
      case lir_throw:                 s = "throw";         break;
      case lir_unwind:                s = "unwind";        break;
      case lir_convert:               s = "convert";       break;
      case lir_alloc_object:          s = "alloc_obj";     break;
      case lir_monaddr:               s = "mon_addr";      break;
      case lir_pack64:                s = "pack64";        break;
      case lir_unpack64:              s = "unpack64";      break;
      // LIR_Op2
 #ifdef MIPS
      case lir_null_check_for_branch: s = "null_check_for_branch"; break;
 #else
      case lir_cmp:                   s = "cmp";           break;
 #endif
      case lir_cmp_l2i:               s = "cmp_l2i";       break;
      case lir_ucmp_fd2i:             s = "ucomp_fd2i";    break;
      case lir_cmp_fd2i:              s = "comp_fd2i";     break;
      case lir_cmove:                 s = "cmove";         break;
      case lir_add:                   s = "add";           break;
      case lir_sub:                   s = "sub";           break;
      case lir_mul:                   s = "mul";           break;
      case lir_mul_strictfp:          s = "mul_strictfp";  break;
      case lir_div:                   s = "div";           break;
      case lir_div_strictfp:          s = "div_strictfp";  break;
      case lir_rem:                   s = "rem";           break;
      case lir_abs:                   s = "abs";           break;
      case lir_sqrt:                  s = "sqrt";          break;
      case lir_sin:                   s = "sin";           break;
      case lir_cos:                   s = "cos";           break;
      case lir_tan:                   s = "tan";           break;
      case lir_log:                   s = "log";           break;
      case lir_log10:                 s = "log10";         break;
      case lir_exp:                   s = "exp";           break;
      case lir_pow:                   s = "pow";           break;
      case lir_logic_and:             s = "logic_and";     break;
      case lir_logic_or:              s = "logic_or";      break;
      case lir_logic_xor:             s = "logic_xor";     break;
      case lir_shl:                   s = "shift_left";    break;
      case lir_shr:                   s = "shift_right";   break;
      case lir_ushr:                  s = "ushift_right";  break;
      case lir_alloc_array:           s = "alloc_array";   break;
      case lir_xadd:                  s = "xadd";          break;
      case lir_xchg:                  s = "xchg";          break;
      // LIR_Op3
 #ifdef MIPS
      case lir_frem:                  s = "frem";          break;
 #endif
      case lir_idiv:                  s = "idiv";          break;
      case lir_irem:                  s = "irem";          break;
 #ifdef MIPS
      // LIR_Op4
      case lir_cmove_mips:            s = "cmove_mips";    break;
 #endif
      // LIR_OpJavaCall
      case lir_static_call:           s = "static";        break;
      case lir_optvirtual_call:       s = "optvirtual";    break;
      case lir_icvirtual_call:        s = "icvirtual";     break;
      case lir_virtual_call:          s = "virtual";       break;
      case lir_dynamic_call:          s = "dynamic";       break;
      // LIR_OpArrayCopy
      case lir_arraycopy:             s = "arraycopy";     break;
      // LIR_OpUpdateCRC32
      case lir_updatecrc32:           s = "updatecrc32";   break;
      // LIR_OpLock
      case lir_lock:                  s = "lock";          break;
      case lir_unlock:                s = "unlock";        break;
      // LIR_OpDelay
      case lir_delay_slot:            s = "delay";         break;
      // LIR_OpTypeCheck
      case lir_instanceof:            s = "instanceof";    break;
      case lir_checkcast:             s = "checkcast";     break;
      case lir_store_check:           s = "store_check";   break;
      // LIR_OpCompareAndSwap
      case lir_cas_long:              s = "cas_long";      break;
      case lir_cas_obj:               s = "cas_obj";      break;
      case lir_cas_int:               s = "cas_int";      break;
      // LIR_OpProfileCall
      case lir_profile_call:          s = "profile_call";  break;
      // LIR_OpProfileType
      case lir_profile_type:          s = "profile_type";  break;
      // LIR_OpAssert
 #ifdef ASSERT
      case lir_assert:                s = "assert";        break;
 #endif
      case lir_none:                  ShouldNotReachHere();break;
     default:                         s = "illegal_op";    break;
   }
   return s;
 }
 // LIR_OpJavaCall
 void LIR_OpJavaCall::print_instr(outputStream* out) const {
   out->print("call: ");
   out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
   if (receiver()->is_valid()) {
     out->print(" [recv: ");   receiver()->print(out);   out->print("]");
   }
   if (result_opr()->is_valid()) {
     out->print(" [result: "); result_opr()->print(out); out->print("]");
   }
 }
 // LIR_OpLabel
 void LIR_OpLabel::print_instr(outputStream* out) const {
   out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
 }
 // LIR_OpArrayCopy
 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
   src()->print(out);     out->print(" ");
   src_pos()->print(out); out->print(" ");
   dst()->print(out);     out->print(" ");
   dst_pos()->print(out); out->print(" ");
   length()->print(out);  out->print(" ");
   tmp()->print(out);     out->print(" ");
 }
 // LIR_OpUpdateCRC32
 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
   crc()->print(out);     out->print(" ");
   val()->print(out);     out->print(" ");
   result_opr()->print(out); out->print(" ");
 }
 // LIR_OpCompareAndSwap
 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
   addr()->print(out);      out->print(" ");
   cmp_value()->print(out); out->print(" ");
   new_value()->print(out); out->print(" ");
   tmp1()->print(out);      out->print(" ");
   tmp2()->print(out);      out->print(" ");
 }
 // LIR_Op0
 void LIR_Op0::print_instr(outputStream* out) const {
   result_opr()->print(out);
 }
 // LIR_Op1
 const char * LIR_Op1::name() const {
   if (code() == lir_move) {
     switch (move_kind()) {
     case lir_move_normal:
       return "move";
     case lir_move_unaligned:
       return "unaligned move";
     case lir_move_volatile:
       return "volatile_move";
     case lir_move_wide:
       return "wide_move";
     default:
       ShouldNotReachHere();
     return "illegal_op";
     }
   } else {
     return LIR_Op::name();
   }
 }
 void LIR_Op1::print_instr(outputStream* out) const {
   _opr->print(out);         out->print(" ");
   result_opr()->print(out); out->print(" ");
   print_patch_code(out, patch_code());
 }
 // LIR_Op1
 void LIR_OpRTCall::print_instr(outputStream* out) const {
   intx a = (intx)addr();
   out->print("%s", Runtime1::name_for_address(addr()));
   out->print(" ");
   tmp()->print(out);
 }
 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
   switch(code) {
     case lir_patch_none:                                 break;
     case lir_patch_low:    out->print("[patch_low]");    break;
     case lir_patch_high:   out->print("[patch_high]");   break;
     case lir_patch_normal: out->print("[patch_normal]"); break;
     default: ShouldNotReachHere();
   }
 }
 // LIR_OpBranch
 void LIR_OpBranch::print_instr(outputStream* out) const {
   print_condition(out, cond());             out->print(" ");
 #ifdef MIPS
   in_opr1()->print(out); out->print(" ");
   in_opr2()->print(out); out->print(" ");
 #endif
   if (block() != NULL) {
     out->print("[B%d] ", block()->block_id());
   } else if (stub() != NULL) {
     out->print("[");
     stub()->print_name(out);
     out->print(": " INTPTR_FORMAT "]", p2i(stub()));
     if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci());
   } else {
     out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
   }
   if (ublock() != NULL) {
     out->print("unordered: [B%d] ", ublock()->block_id());
   }
 }
 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
   switch(cond) {
     case lir_cond_equal:           out->print("[EQ]");      break;
     case lir_cond_notEqual:        out->print("[NE]");      break;
     case lir_cond_less:            out->print("[LT]");      break;
     case lir_cond_lessEqual:       out->print("[LE]");      break;
     case lir_cond_greaterEqual:    out->print("[GE]");      break;
     case lir_cond_greater:         out->print("[GT]");      break;
     case lir_cond_belowEqual:      out->print("[BE]");      break;
     case lir_cond_aboveEqual:      out->print("[AE]");      break;
     case lir_cond_always:          out->print("[AL]");      break;
     default:                       out->print("[%d]",cond); break;
   }
 }
 // LIR_OpConvert
 void LIR_OpConvert::print_instr(outputStream* out) const {
   print_bytecode(out, bytecode());
   in_opr()->print(out);                  out->print(" ");
   result_opr()->print(out);              out->print(" ");
 #ifdef PPC
   if(tmp1()->is_valid()) {
     tmp1()->print(out); out->print(" ");
     tmp2()->print(out); out->print(" ");
   }
 #endif
 }
 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
   switch(code) {
     case Bytecodes::_d2f: out->print("[d2f] "); break;
     case Bytecodes::_d2i: out->print("[d2i] "); break;
     case Bytecodes::_d2l: out->print("[d2l] "); break;
     case Bytecodes::_f2d: out->print("[f2d] "); break;
     case Bytecodes::_f2i: out->print("[f2i] "); break;
     case Bytecodes::_f2l: out->print("[f2l] "); break;
     case Bytecodes::_i2b: out->print("[i2b] "); break;
     case Bytecodes::_i2c: out->print("[i2c] "); break;
     case Bytecodes::_i2d: out->print("[i2d] "); break;
     case Bytecodes::_i2f: out->print("[i2f] "); break;
     case Bytecodes::_i2l: out->print("[i2l] "); break;
     case Bytecodes::_i2s: out->print("[i2s] "); break;
     case Bytecodes::_l2i: out->print("[l2i] "); break;
     case Bytecodes::_l2f: out->print("[l2f] "); break;
     case Bytecodes::_l2d: out->print("[l2d] "); break;
     default:
       out->print("[?%d]",code);
     break;
   }
 }
 void LIR_OpAllocObj::print_instr(outputStream* out) const {
   klass()->print(out);                      out->print(" ");
   obj()->print(out);                        out->print(" ");
   tmp1()->print(out);                       out->print(" ");
   tmp2()->print(out);                       out->print(" ");
   tmp3()->print(out);                       out->print(" ");
   tmp4()->print(out);                       out->print(" ");
 #ifdef MIPS
   tmp5()->print(out);                       out->print(" ");
   tmp6()->print(out);                       out->print(" ");
 #endif
   out->print("[hdr:%d]", header_size()); out->print(" ");
   out->print("[obj:%d]", object_size()); out->print(" ");
   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
 }
 void LIR_OpRoundFP::print_instr(outputStream* out) const {
   _opr->print(out);         out->print(" ");
   tmp()->print(out);        out->print(" ");
   result_opr()->print(out); out->print(" ");
 }
 // LIR_Op2
 void LIR_Op2::print_instr(outputStream* out) const {
 #ifndef MIPS
   if (code() == lir_cmove) {
     print_condition(out, condition());         out->print(" ");
   }
 #endif
   in_opr1()->print(out);    out->print(" ");
   in_opr2()->print(out);    out->print(" ");
   if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out);    out->print(" "); }
   if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out);    out->print(" "); }
   if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out);    out->print(" "); }
   if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out);    out->print(" "); }
   if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out);    out->print(" "); }
   result_opr()->print(out);
 }
 void LIR_OpAllocArray::print_instr(outputStream* out) const {
   klass()->print(out);                   out->print(" ");
   len()->print(out);                     out->print(" ");
   obj()->print(out);                     out->print(" ");
   tmp1()->print(out);                    out->print(" ");
   tmp2()->print(out);                    out->print(" ");
   tmp3()->print(out);                    out->print(" ");
   tmp4()->print(out);                    out->print(" ");
 #ifdef MIPS
   tmp5()->print(out);                    out->print(" ");
 #endif
   out->print("[type:0x%x]", type());     out->print(" ");
   out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
 }
 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
   object()->print(out);                  out->print(" ");
   if (code() == lir_store_check) {
     array()->print(out);                 out->print(" ");
   }
   if (code() != lir_store_check) {
     klass()->print_name_on(out);         out->print(" ");
     if (fast_check())                 out->print("fast_check ");
   }
   tmp1()->print(out);                    out->print(" ");
   tmp2()->print(out);                    out->print(" ");
   tmp3()->print(out);                    out->print(" ");
   result_opr()->print(out);              out->print(" ");
   if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
 }
 // LIR_Op3
 void LIR_Op3::print_instr(outputStream* out) const {
   in_opr1()->print(out);    out->print(" ");
   in_opr2()->print(out);    out->print(" ");
   in_opr3()->print(out);    out->print(" ");
   result_opr()->print(out);
 }
 #ifdef MIPS
 // LIR_Op4
 void LIR_Op4::print_instr(outputStream* out) const {
   print_condition(out, cond()); out->print(" ");
   in_opr1()->print(out);        out->print(" ");
   in_opr2()->print(out);        out->print(" ");
   in_opr3()->print(out);        out->print(" ");
   in_opr4()->print(out);        out->print(" ");
   result_opr()->print(out);
 }
 #endif
 void LIR_OpLock::print_instr(outputStream* out) const {
   hdr_opr()->print(out);   out->print(" ");
   obj_opr()->print(out);   out->print(" ");
   lock_opr()->print(out);  out->print(" ");
   if (_scratch->is_valid()) {
     _scratch->print(out);  out->print(" ");
   }
   out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
 }
 #ifdef ASSERT
 void LIR_OpAssert::print_instr(outputStream* out) const {
   tty->print_cr("function LIR_OpAssert::print_instr unimplemented yet! ");
   Unimplemented();
   /*
   print_condition(out, condition()); out->print(" ");
   in_opr1()->print(out);             out->print(" ");
   in_opr2()->print(out);             out->print(", \"");
   out->print("%s", msg());          out->print("\"");
   */
 }
 #endif
 void LIR_OpDelay::print_instr(outputStream* out) const {
   _op->print_on(out);
 }
 // LIR_OpProfileCall
 void LIR_OpProfileCall::print_instr(outputStream* out) const {
   profiled_method()->name()->print_symbol_on(out);
   out->print(".");
   profiled_method()->holder()->name()->print_symbol_on(out);
   out->print(" @ %d ", profiled_bci());
   mdo()->print(out);           out->print(" ");
   recv()->print(out);          out->print(" ");
   tmp1()->print(out);          out->print(" ");
 }
 // LIR_OpProfileType
 void LIR_OpProfileType::print_instr(outputStream* out) const {
   out->print("exact = ");
   if  (exact_klass() == NULL) {
     out->print("unknown");
   } else {
     exact_klass()->print_name_on(out);
   }
   out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
   out->print(" ");
   mdp()->print(out);          out->print(" ");
   obj()->print(out);          out->print(" ");
   tmp()->print(out);          out->print(" ");
 }
 #endif // PRODUCT
 // Implementation of LIR_InsertionBuffer
 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
   assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
   int i = number_of_insertion_points() - 1;
   if (i < 0 || index_at(i) < index) {
     append_new(index, 1);
   } else {
     assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
     assert(count_at(i) > 0, "check");
     set_count_at(i, count_at(i) + 1);
   }
   _ops.push(op);
   DEBUG_ONLY(verify());
 }
 #ifdef ASSERT
 void LIR_InsertionBuffer::verify() {
   int sum = 0;
   int prev_idx = -1;
   for (int i = 0; i < number_of_insertion_points(); i++) {
     assert(prev_idx < index_at(i), "index must be ordered ascending");
     sum += count_at(i);
   }
   assert(sum == number_of_ops(), "wrong total sum");
 }
 #endif

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/c1/c1_LIR.cpp@8c95980d0b66 (annotated)

src/share/vm/c1/c1_LIR.cpp