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/*
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* Copyright (c) 2008, 2016, Oracle and/or its affiliates. All rights reserved.
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42664
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "c1/c1_Compilation.hpp"
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#include "c1/c1_FrameMap.hpp"
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#include "c1/c1_Instruction.hpp"
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#include "c1/c1_LIRAssembler.hpp"
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#include "c1/c1_LIRGenerator.hpp"
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#include "c1/c1_Runtime1.hpp"
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#include "c1/c1_ValueStack.hpp"
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#include "ci/ciArray.hpp"
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#include "ci/ciObjArrayKlass.hpp"
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#include "ci/ciTypeArrayKlass.hpp"
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#include "gc/shared/cardTableModRefBS.hpp"
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#include "runtime/sharedRuntime.hpp"
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#include "runtime/stubRoutines.hpp"
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#include "vmreg_arm.inline.hpp"
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#ifdef ASSERT
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#define __ gen()->lir(__FILE__, __LINE__)->
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#else
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#define __ gen()->lir()->
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#endif
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void LIRItem::load_byte_item() {
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load_item();
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}
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void LIRItem::load_nonconstant() {
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LIR_Opr r = value()->operand();
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if (_gen->can_inline_as_constant(value())) {
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if (!r->is_constant()) {
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r = LIR_OprFact::value_type(value()->type());
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}
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_result = r;
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} else {
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load_item();
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}
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}
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//--------------------------------------------------------------
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// LIRGenerator
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//--------------------------------------------------------------
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LIR_Opr LIRGenerator::exceptionOopOpr() {
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return FrameMap::Exception_oop_opr;
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}
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LIR_Opr LIRGenerator::exceptionPcOpr() {
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return FrameMap::Exception_pc_opr;
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}
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LIR_Opr LIRGenerator::syncLockOpr() {
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return new_register(T_INT);
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}
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LIR_Opr LIRGenerator::syncTempOpr() {
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return new_register(T_OBJECT);
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}
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LIR_Opr LIRGenerator::getThreadTemp() {
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return LIR_OprFact::illegalOpr;
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}
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LIR_Opr LIRGenerator::atomicLockOpr() {
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return LIR_OprFact::illegalOpr;
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}
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LIR_Opr LIRGenerator::result_register_for(ValueType* type, bool callee) {
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LIR_Opr opr;
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switch (type->tag()) {
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case intTag: opr = FrameMap::Int_result_opr; break;
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case objectTag: opr = FrameMap::Object_result_opr; break;
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case longTag: opr = FrameMap::Long_result_opr; break;
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case floatTag: opr = FrameMap::Float_result_opr; break;
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case doubleTag: opr = FrameMap::Double_result_opr; break;
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case addressTag:
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default: ShouldNotReachHere(); return LIR_OprFact::illegalOpr;
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}
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assert(opr->type_field() == as_OprType(as_BasicType(type)), "type mismatch");
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return opr;
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}
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LIR_Opr LIRGenerator::rlock_byte(BasicType type) {
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return new_register(T_INT);
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}
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//--------- loading items into registers --------------------------------
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bool LIRGenerator::can_store_as_constant(Value v, BasicType type) const {
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#ifdef AARCH64
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if (v->type()->as_IntConstant() != NULL) {
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return v->type()->as_IntConstant()->value() == 0;
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} else if (v->type()->as_LongConstant() != NULL) {
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return v->type()->as_LongConstant()->value() == 0;
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} else if (v->type()->as_ObjectConstant() != NULL) {
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return v->type()->as_ObjectConstant()->value()->is_null_object();
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} else if (v->type()->as_FloatConstant() != NULL) {
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return jint_cast(v->type()->as_FloatConstant()->value()) == 0;
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} else if (v->type()->as_DoubleConstant() != NULL) {
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return jlong_cast(v->type()->as_DoubleConstant()->value()) == 0;
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}
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#endif // AARCH64
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return false;
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}
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bool LIRGenerator::can_inline_as_constant(Value v) const {
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if (v->type()->as_IntConstant() != NULL) {
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return Assembler::is_arith_imm_in_range(v->type()->as_IntConstant()->value());
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} else if (v->type()->as_ObjectConstant() != NULL) {
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return v->type()->as_ObjectConstant()->value()->is_null_object();
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#ifdef AARCH64
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} else if (v->type()->as_LongConstant() != NULL) {
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return Assembler::is_arith_imm_in_range(v->type()->as_LongConstant()->value());
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#else
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} else if (v->type()->as_FloatConstant() != NULL) {
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return v->type()->as_FloatConstant()->value() == 0.0f;
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} else if (v->type()->as_DoubleConstant() != NULL) {
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return v->type()->as_DoubleConstant()->value() == 0.0;
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#endif // AARCH64
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}
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return false;
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}
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bool LIRGenerator::can_inline_as_constant(LIR_Const* c) const {
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ShouldNotCallThis(); // Not used on ARM
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return false;
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}
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#ifdef AARCH64
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static bool can_inline_as_constant_in_cmp(Value v) {
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jlong constant;
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if (v->type()->as_IntConstant() != NULL) {
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constant = v->type()->as_IntConstant()->value();
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} else if (v->type()->as_LongConstant() != NULL) {
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constant = v->type()->as_LongConstant()->value();
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} else if (v->type()->as_ObjectConstant() != NULL) {
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return v->type()->as_ObjectConstant()->value()->is_null_object();
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} else if (v->type()->as_FloatConstant() != NULL) {
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return v->type()->as_FloatConstant()->value() == 0.0f;
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} else if (v->type()->as_DoubleConstant() != NULL) {
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return v->type()->as_DoubleConstant()->value() == 0.0;
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} else {
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return false;
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}
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return Assembler::is_arith_imm_in_range(constant) || Assembler::is_arith_imm_in_range(-constant);
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}
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static bool can_inline_as_constant_in_logic(Value v) {
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if (v->type()->as_IntConstant() != NULL) {
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return Assembler::LogicalImmediate(v->type()->as_IntConstant()->value(), true).is_encoded();
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} else if (v->type()->as_LongConstant() != NULL) {
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return Assembler::LogicalImmediate(v->type()->as_LongConstant()->value(), false).is_encoded();
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}
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return false;
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}
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#endif // AARCH64
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LIR_Opr LIRGenerator::safepoint_poll_register() {
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return LIR_OprFact::illegalOpr;
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}
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static LIR_Opr make_constant(BasicType type, jlong c) {
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switch (type) {
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case T_ADDRESS:
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case T_OBJECT: return LIR_OprFact::intptrConst(c);
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case T_LONG: return LIR_OprFact::longConst(c);
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case T_INT: return LIR_OprFact::intConst(c);
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default: ShouldNotReachHere();
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return LIR_OprFact::intConst(-1);
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}
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}
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#ifdef AARCH64
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void LIRGenerator::add_constant(LIR_Opr src, jlong c, LIR_Opr dest) {
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if (c == 0) {
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__ move(src, dest);
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return;
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}
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BasicType type = src->type();
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bool is_neg = (c < 0);
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c = ABS(c);
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if ((c >> 24) == 0) {
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for (int shift = 0; shift <= 12; shift += 12) {
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int part = ((int)c) & (right_n_bits(12) << shift);
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if (part != 0) {
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if (is_neg) {
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__ sub(src, make_constant(type, part), dest);
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} else {
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__ add(src, make_constant(type, part), dest);
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}
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src = dest;
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}
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}
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} else {
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__ move(make_constant(type, c), dest);
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if (is_neg) {
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__ sub(src, dest, dest);
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} else {
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__ add(src, dest, dest);
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}
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}
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}
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#endif // AARCH64
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void LIRGenerator::add_large_constant(LIR_Opr src, int c, LIR_Opr dest) {
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assert(c != 0, "must be");
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#ifdef AARCH64
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add_constant(src, c, dest);
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#else
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// Find first non-zero bit
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int shift = 0;
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while ((c & (3 << shift)) == 0) {
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shift += 2;
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}
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// Add the least significant part of the constant
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int mask = 0xff << shift;
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__ add(src, LIR_OprFact::intConst(c & mask), dest);
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// Add up to 3 other parts of the constant;
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// each of them can be represented as rotated_imm
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if (c & (mask << 8)) {
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__ add(dest, LIR_OprFact::intConst(c & (mask << 8)), dest);
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}
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if (c & (mask << 16)) {
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__ add(dest, LIR_OprFact::intConst(c & (mask << 16)), dest);
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}
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if (c & (mask << 24)) {
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__ add(dest, LIR_OprFact::intConst(c & (mask << 24)), dest);
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}
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#endif // AARCH64
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}
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static LIR_Address* make_address(LIR_Opr base, LIR_Opr index, LIR_Address::Scale scale, BasicType type) {
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return new LIR_Address(base, index, scale, 0, type);
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}
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LIR_Address* LIRGenerator::generate_address(LIR_Opr base, LIR_Opr index,
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int shift, int disp, BasicType type) {
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assert(base->is_register(), "must be");
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if (index->is_constant()) {
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disp += index->as_constant_ptr()->as_jint() << shift;
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index = LIR_OprFact::illegalOpr;
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}
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#ifndef AARCH64
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if (base->type() == T_LONG) {
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LIR_Opr tmp = new_register(T_INT);
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__ convert(Bytecodes::_l2i, base, tmp);
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base = tmp;
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}
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if (index != LIR_OprFact::illegalOpr && index->type() == T_LONG) {
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LIR_Opr tmp = new_register(T_INT);
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__ convert(Bytecodes::_l2i, index, tmp);
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index = tmp;
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}
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// At this point base and index should be all ints and not constants
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assert(base->is_single_cpu() && !base->is_constant(), "base should be an non-constant int");
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assert(index->is_illegal() || (index->type() == T_INT && !index->is_constant()), "index should be an non-constant int");
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#endif
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int max_disp;
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bool disp_is_in_range;
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bool embedded_shift;
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#ifdef AARCH64
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int align = exact_log2(type2aelembytes(type, true));
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assert((disp & right_n_bits(align)) == 0, "displacement is not aligned");
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assert(shift == 0 || shift == align, "shift should be zero or equal to embedded align");
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max_disp = (1 << 12) << align;
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if (disp >= 0) {
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disp_is_in_range = Assembler::is_unsigned_imm_in_range(disp, 12, align);
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} else {
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disp_is_in_range = Assembler::is_imm_in_range(disp, 9, 0);
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}
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embedded_shift = true;
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#else
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switch (type) {
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case T_BYTE:
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case T_SHORT:
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case T_CHAR:
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max_disp = 256; // ldrh, ldrsb encoding has 8-bit offset
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embedded_shift = false;
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break;
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case T_FLOAT:
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case T_DOUBLE:
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max_disp = 1024; // flds, fldd have 8-bit offset multiplied by 4
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embedded_shift = false;
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break;
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case T_LONG:
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max_disp = 4096;
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embedded_shift = false;
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break;
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default:
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max_disp = 4096; // ldr, ldrb allow 12-bit offset
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embedded_shift = true;
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}
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disp_is_in_range = (-max_disp < disp && disp < max_disp);
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#endif // !AARCH64
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if (index->is_register()) {
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LIR_Opr tmp = new_pointer_register();
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if (!disp_is_in_range) {
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add_large_constant(base, disp, tmp);
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base = tmp;
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disp = 0;
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}
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LIR_Address* addr = make_address(base, index, (LIR_Address::Scale)shift, type);
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if (disp == 0 && embedded_shift) {
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// can use ldr/str instruction with register index
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return addr;
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} else {
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LIR_Opr tmp = new_pointer_register();
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__ add(base, LIR_OprFact::address(addr), tmp); // add with shifted/extended register
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return new LIR_Address(tmp, disp, type);
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}
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}
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// If the displacement is too large to be inlined into LDR instruction,
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// generate large constant with additional sequence of ADD instructions
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int excess_disp = disp & ~(max_disp - 1);
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if (excess_disp != 0) {
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LIR_Opr tmp = new_pointer_register();
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add_large_constant(base, excess_disp, tmp);
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base = tmp;
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}
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return new LIR_Address(base, disp & (max_disp - 1), type);
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}
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LIR_Address* LIRGenerator::emit_array_address(LIR_Opr array_opr, LIR_Opr index_opr,
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BasicType type, bool needs_card_mark) {
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int base_offset = arrayOopDesc::base_offset_in_bytes(type);
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int elem_size = type2aelembytes(type);
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if (index_opr->is_constant()) {
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int offset = base_offset + index_opr->as_constant_ptr()->as_jint() * elem_size;
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if (needs_card_mark) {
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LIR_Opr base_opr = new_pointer_register();
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add_large_constant(array_opr, offset, base_opr);
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return new LIR_Address(base_opr, (intx)0, type);
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} else {
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return generate_address(array_opr, offset, type);
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}
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} else {
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assert(index_opr->is_register(), "must be");
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int scale = exact_log2(elem_size);
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if (needs_card_mark) {
|
|
393 |
LIR_Opr base_opr = new_pointer_register();
|
|
394 |
LIR_Address* addr = make_address(base_opr, index_opr, (LIR_Address::Scale)scale, type);
|
|
395 |
__ add(array_opr, LIR_OprFact::intptrConst(base_offset), base_opr);
|
|
396 |
__ add(base_opr, LIR_OprFact::address(addr), base_opr); // add with shifted/extended register
|
|
397 |
return new LIR_Address(base_opr, type);
|
|
398 |
} else {
|
|
399 |
return generate_address(array_opr, index_opr, scale, base_offset, type);
|
|
400 |
}
|
|
401 |
}
|
|
402 |
}
|
|
403 |
|
|
404 |
|
|
405 |
LIR_Opr LIRGenerator::load_immediate(int x, BasicType type) {
|
|
406 |
assert(type == T_LONG || type == T_INT, "should be");
|
|
407 |
LIR_Opr r = make_constant(type, x);
|
|
408 |
#ifdef AARCH64
|
|
409 |
bool imm_in_range = Assembler::LogicalImmediate(x, type == T_INT).is_encoded();
|
|
410 |
#else
|
|
411 |
bool imm_in_range = AsmOperand::is_rotated_imm(x);
|
|
412 |
#endif // AARCH64
|
|
413 |
if (!imm_in_range) {
|
|
414 |
LIR_Opr tmp = new_register(type);
|
|
415 |
__ move(r, tmp);
|
|
416 |
return tmp;
|
|
417 |
}
|
|
418 |
return r;
|
|
419 |
}
|
|
420 |
|
|
421 |
|
|
422 |
void LIRGenerator::increment_counter(address counter, BasicType type, int step) {
|
|
423 |
LIR_Opr pointer = new_pointer_register();
|
|
424 |
__ move(LIR_OprFact::intptrConst(counter), pointer);
|
|
425 |
LIR_Address* addr = new LIR_Address(pointer, type);
|
|
426 |
increment_counter(addr, step);
|
|
427 |
}
|
|
428 |
|
|
429 |
|
|
430 |
void LIRGenerator::increment_counter(LIR_Address* addr, int step) {
|
|
431 |
LIR_Opr temp = new_register(addr->type());
|
|
432 |
__ move(addr, temp);
|
|
433 |
__ add(temp, make_constant(addr->type(), step), temp);
|
|
434 |
__ move(temp, addr);
|
|
435 |
}
|
|
436 |
|
|
437 |
|
|
438 |
void LIRGenerator::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
|
|
439 |
__ load(new LIR_Address(base, disp, T_INT), FrameMap::LR_opr, info);
|
|
440 |
__ cmp(condition, FrameMap::LR_opr, c);
|
|
441 |
}
|
|
442 |
|
|
443 |
|
|
444 |
void LIRGenerator::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Opr base, int disp, BasicType type, CodeEmitInfo* info) {
|
|
445 |
__ load(new LIR_Address(base, disp, type), FrameMap::LR_opr, info);
|
|
446 |
__ cmp(condition, reg, FrameMap::LR_opr);
|
|
447 |
}
|
|
448 |
|
|
449 |
|
|
450 |
bool LIRGenerator::strength_reduce_multiply(LIR_Opr left, int c, LIR_Opr result, LIR_Opr tmp) {
|
|
451 |
assert(left != result, "should be different registers");
|
|
452 |
if (is_power_of_2(c + 1)) {
|
|
453 |
#ifdef AARCH64
|
|
454 |
__ shift_left(left, log2_intptr(c + 1), result);
|
|
455 |
__ sub(result, left, result);
|
|
456 |
#else
|
|
457 |
LIR_Address::Scale scale = (LIR_Address::Scale) log2_intptr(c + 1);
|
|
458 |
LIR_Address* addr = new LIR_Address(left, left, scale, 0, T_INT);
|
|
459 |
__ sub(LIR_OprFact::address(addr), left, result); // rsb with shifted register
|
|
460 |
#endif // AARCH64
|
|
461 |
return true;
|
|
462 |
} else if (is_power_of_2(c - 1)) {
|
|
463 |
LIR_Address::Scale scale = (LIR_Address::Scale) log2_intptr(c - 1);
|
|
464 |
LIR_Address* addr = new LIR_Address(left, left, scale, 0, T_INT);
|
|
465 |
__ add(left, LIR_OprFact::address(addr), result); // add with shifted register
|
|
466 |
return true;
|
|
467 |
}
|
|
468 |
return false;
|
|
469 |
}
|
|
470 |
|
|
471 |
|
|
472 |
void LIRGenerator::store_stack_parameter(LIR_Opr item, ByteSize offset_from_sp) {
|
|
473 |
assert(item->type() == T_INT, "other types are not expected");
|
|
474 |
__ store(item, new LIR_Address(FrameMap::SP_opr, in_bytes(offset_from_sp), item->type()));
|
|
475 |
}
|
|
476 |
|
|
477 |
void LIRGenerator::set_card(LIR_Opr value, LIR_Address* card_addr) {
|
|
478 |
assert(CardTableModRefBS::dirty_card_val() == 0,
|
|
479 |
"Cannot use ZR register (aarch64) or the register containing the card table base address directly (aarch32) otherwise");
|
|
480 |
#ifdef AARCH64
|
|
481 |
// AARCH64 has a register that is constant zero. We can use that one to set the
|
|
482 |
// value in the card table to dirty.
|
|
483 |
__ move(FrameMap::ZR_opr, card_addr);
|
|
484 |
#else // AARCH64
|
|
485 |
CardTableModRefBS* ct = (CardTableModRefBS*)_bs;
|
|
486 |
if(((intx)ct->byte_map_base & 0xff) == 0) {
|
|
487 |
// If the card table base address is aligned to 256 bytes, we can use the register
|
|
488 |
// that contains the card_table_base_address.
|
|
489 |
__ move(value, card_addr);
|
|
490 |
} else {
|
|
491 |
// Otherwise we need to create a register containing that value.
|
|
492 |
LIR_Opr tmp_zero = new_register(T_INT);
|
|
493 |
__ move(LIR_OprFact::intConst(CardTableModRefBS::dirty_card_val()), tmp_zero);
|
|
494 |
__ move(tmp_zero, card_addr);
|
|
495 |
}
|
|
496 |
#endif // AARCH64
|
|
497 |
}
|
|
498 |
|
|
499 |
void LIRGenerator::CardTableModRef_post_barrier_helper(LIR_OprDesc* addr, LIR_Const* card_table_base) {
|
|
500 |
assert(addr->is_register(), "must be a register at this point");
|
|
501 |
|
|
502 |
LIR_Opr tmp = FrameMap::LR_ptr_opr;
|
|
503 |
|
|
504 |
// TODO-AARCH64: check performance
|
|
505 |
bool load_card_table_base_const = AARCH64_ONLY(false) NOT_AARCH64(VM_Version::supports_movw());
|
|
506 |
if (load_card_table_base_const) {
|
|
507 |
__ move((LIR_Opr)card_table_base, tmp);
|
|
508 |
} else {
|
|
509 |
__ move(new LIR_Address(FrameMap::Rthread_opr, in_bytes(JavaThread::card_table_base_offset()), T_ADDRESS), tmp);
|
|
510 |
}
|
|
511 |
|
|
512 |
#ifdef AARCH64
|
|
513 |
LIR_Address* shifted_reg_operand = new LIR_Address(tmp, addr, (LIR_Address::Scale) -CardTableModRefBS::card_shift, 0, T_BYTE);
|
|
514 |
LIR_Opr tmp2 = tmp;
|
|
515 |
__ add(tmp, LIR_OprFact::address(shifted_reg_operand), tmp2); // tmp2 = tmp + (addr >> CardTableModRefBS::card_shift)
|
|
516 |
LIR_Address* card_addr = new LIR_Address(tmp2, T_BYTE);
|
|
517 |
#else
|
|
518 |
// Use unsigned type T_BOOLEAN here rather than (signed) T_BYTE since signed load
|
|
519 |
// byte instruction does not support the addressing mode we need.
|
|
520 |
LIR_Address* card_addr = new LIR_Address(tmp, addr, (LIR_Address::Scale) -CardTableModRefBS::card_shift, 0, T_BOOLEAN);
|
|
521 |
#endif
|
|
522 |
if (UseCondCardMark) {
|
|
523 |
if (UseConcMarkSweepGC) {
|
|
524 |
__ membar_storeload();
|
|
525 |
}
|
|
526 |
LIR_Opr cur_value = new_register(T_INT);
|
|
527 |
__ move(card_addr, cur_value);
|
|
528 |
|
|
529 |
LabelObj* L_already_dirty = new LabelObj();
|
|
530 |
__ cmp(lir_cond_equal, cur_value, LIR_OprFact::intConst(CardTableModRefBS::dirty_card_val()));
|
|
531 |
__ branch(lir_cond_equal, T_BYTE, L_already_dirty->label());
|
|
532 |
set_card(tmp, card_addr);
|
|
533 |
__ branch_destination(L_already_dirty->label());
|
|
534 |
} else {
|
|
535 |
if (UseConcMarkSweepGC && CMSPrecleaningEnabled) {
|
|
536 |
__ membar_storestore();
|
|
537 |
}
|
|
538 |
set_card(tmp, card_addr);
|
|
539 |
}
|
|
540 |
}
|
|
541 |
|
|
542 |
//----------------------------------------------------------------------
|
|
543 |
// visitor functions
|
|
544 |
//----------------------------------------------------------------------
|
|
545 |
|
|
546 |
|
|
547 |
void LIRGenerator::do_StoreIndexed(StoreIndexed* x) {
|
|
548 |
assert(x->is_pinned(),"");
|
|
549 |
bool needs_range_check = x->compute_needs_range_check();
|
|
550 |
bool use_length = x->length() != NULL;
|
|
551 |
bool obj_store = x->elt_type() == T_ARRAY || x->elt_type() == T_OBJECT;
|
|
552 |
bool needs_store_check = obj_store && (x->value()->as_Constant() == NULL ||
|
|
553 |
!get_jobject_constant(x->value())->is_null_object() ||
|
|
554 |
x->should_profile());
|
|
555 |
|
|
556 |
LIRItem array(x->array(), this);
|
|
557 |
LIRItem index(x->index(), this);
|
|
558 |
LIRItem value(x->value(), this);
|
|
559 |
LIRItem length(this);
|
|
560 |
|
|
561 |
array.load_item();
|
|
562 |
index.load_nonconstant();
|
|
563 |
|
|
564 |
if (use_length && needs_range_check) {
|
|
565 |
length.set_instruction(x->length());
|
|
566 |
length.load_item();
|
|
567 |
}
|
|
568 |
if (needs_store_check || x->check_boolean()) {
|
|
569 |
value.load_item();
|
|
570 |
} else {
|
|
571 |
value.load_for_store(x->elt_type());
|
|
572 |
}
|
|
573 |
|
|
574 |
set_no_result(x);
|
|
575 |
|
|
576 |
// the CodeEmitInfo must be duplicated for each different
|
|
577 |
// LIR-instruction because spilling can occur anywhere between two
|
|
578 |
// instructions and so the debug information must be different
|
|
579 |
CodeEmitInfo* range_check_info = state_for(x);
|
|
580 |
CodeEmitInfo* null_check_info = NULL;
|
|
581 |
if (x->needs_null_check()) {
|
|
582 |
null_check_info = new CodeEmitInfo(range_check_info);
|
|
583 |
}
|
|
584 |
|
|
585 |
// emit array address setup early so it schedules better
|
|
586 |
LIR_Address* array_addr = emit_array_address(array.result(), index.result(), x->elt_type(), obj_store);
|
|
587 |
|
|
588 |
if (GenerateRangeChecks && needs_range_check) {
|
|
589 |
if (use_length) {
|
|
590 |
__ cmp(lir_cond_belowEqual, length.result(), index.result());
|
|
591 |
__ branch(lir_cond_belowEqual, T_INT, new RangeCheckStub(range_check_info, index.result()));
|
|
592 |
} else {
|
|
593 |
array_range_check(array.result(), index.result(), null_check_info, range_check_info);
|
|
594 |
// range_check also does the null check
|
|
595 |
null_check_info = NULL;
|
|
596 |
}
|
|
597 |
}
|
|
598 |
|
|
599 |
if (GenerateArrayStoreCheck && needs_store_check) {
|
|
600 |
LIR_Opr tmp1 = FrameMap::R0_oop_opr;
|
|
601 |
LIR_Opr tmp2 = FrameMap::R1_oop_opr;
|
|
602 |
CodeEmitInfo* store_check_info = new CodeEmitInfo(range_check_info);
|
|
603 |
__ store_check(value.result(), array.result(), tmp1, tmp2,
|
|
604 |
LIR_OprFact::illegalOpr, store_check_info,
|
|
605 |
x->profiled_method(), x->profiled_bci());
|
|
606 |
}
|
|
607 |
|
|
608 |
#if INCLUDE_ALL_GCS
|
|
609 |
if (obj_store) {
|
|
610 |
// Needs GC write barriers.
|
|
611 |
pre_barrier(LIR_OprFact::address(array_addr), LIR_OprFact::illegalOpr /* pre_val */,
|
|
612 |
true /* do_load */, false /* patch */, NULL);
|
|
613 |
}
|
|
614 |
#endif // INCLUDE_ALL_GCS
|
|
615 |
|
|
616 |
LIR_Opr result = maybe_mask_boolean(x, array.result(), value.result(), null_check_info);
|
|
617 |
__ move(result, array_addr, null_check_info);
|
|
618 |
if (obj_store) {
|
|
619 |
post_barrier(LIR_OprFact::address(array_addr), value.result());
|
|
620 |
}
|
|
621 |
}
|
|
622 |
|
|
623 |
|
|
624 |
void LIRGenerator::do_MonitorEnter(MonitorEnter* x) {
|
|
625 |
assert(x->is_pinned(),"");
|
|
626 |
LIRItem obj(x->obj(), this);
|
|
627 |
obj.load_item();
|
|
628 |
set_no_result(x);
|
|
629 |
|
|
630 |
LIR_Opr lock = new_pointer_register();
|
|
631 |
LIR_Opr hdr = new_pointer_register();
|
|
632 |
|
|
633 |
// Need a scratch register for biased locking on arm
|
|
634 |
LIR_Opr scratch = LIR_OprFact::illegalOpr;
|
|
635 |
if(UseBiasedLocking) {
|
|
636 |
scratch = new_pointer_register();
|
|
637 |
} else {
|
|
638 |
scratch = atomicLockOpr();
|
|
639 |
}
|
|
640 |
|
|
641 |
CodeEmitInfo* info_for_exception = NULL;
|
|
642 |
if (x->needs_null_check()) {
|
|
643 |
info_for_exception = state_for(x);
|
|
644 |
}
|
|
645 |
|
|
646 |
CodeEmitInfo* info = state_for(x, x->state(), true);
|
|
647 |
monitor_enter(obj.result(), lock, hdr, scratch,
|
|
648 |
x->monitor_no(), info_for_exception, info);
|
|
649 |
}
|
|
650 |
|
|
651 |
|
|
652 |
void LIRGenerator::do_MonitorExit(MonitorExit* x) {
|
|
653 |
assert(x->is_pinned(),"");
|
|
654 |
LIRItem obj(x->obj(), this);
|
|
655 |
obj.dont_load_item();
|
|
656 |
set_no_result(x);
|
|
657 |
|
|
658 |
LIR_Opr obj_temp = new_pointer_register();
|
|
659 |
LIR_Opr lock = new_pointer_register();
|
|
660 |
LIR_Opr hdr = new_pointer_register();
|
|
661 |
|
|
662 |
monitor_exit(obj_temp, lock, hdr, atomicLockOpr(), x->monitor_no());
|
|
663 |
}
|
|
664 |
|
|
665 |
|
|
666 |
// _ineg, _lneg, _fneg, _dneg
|
|
667 |
void LIRGenerator::do_NegateOp(NegateOp* x) {
|
|
668 |
#ifdef __SOFTFP__
|
|
669 |
address runtime_func = NULL;
|
|
670 |
ValueTag tag = x->type()->tag();
|
|
671 |
if (tag == floatTag) {
|
|
672 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::fneg);
|
|
673 |
} else if (tag == doubleTag) {
|
|
674 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dneg);
|
|
675 |
}
|
|
676 |
if (runtime_func != NULL) {
|
|
677 |
set_result(x, call_runtime(x->x(), runtime_func, x->type(), NULL));
|
|
678 |
return;
|
|
679 |
}
|
|
680 |
#endif // __SOFTFP__
|
|
681 |
LIRItem value(x->x(), this);
|
|
682 |
value.load_item();
|
|
683 |
LIR_Opr reg = rlock_result(x);
|
|
684 |
__ negate(value.result(), reg);
|
|
685 |
}
|
|
686 |
|
|
687 |
|
|
688 |
// for _fadd, _fmul, _fsub, _fdiv, _frem
|
|
689 |
// _dadd, _dmul, _dsub, _ddiv, _drem
|
|
690 |
void LIRGenerator::do_ArithmeticOp_FPU(ArithmeticOp* x) {
|
|
691 |
address runtime_func;
|
|
692 |
switch (x->op()) {
|
|
693 |
case Bytecodes::_frem:
|
|
694 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::frem);
|
|
695 |
break;
|
|
696 |
case Bytecodes::_drem:
|
|
697 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::drem);
|
|
698 |
break;
|
|
699 |
#ifdef __SOFTFP__
|
|
700 |
// Call function compiled with -msoft-float.
|
|
701 |
|
|
702 |
// __aeabi_XXXX_glibc: Imported code from glibc soft-fp bundle for calculation accuracy improvement. See CR 6757269.
|
|
703 |
|
|
704 |
case Bytecodes::_fadd:
|
|
705 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_fadd_glibc);
|
|
706 |
break;
|
|
707 |
case Bytecodes::_fmul:
|
|
708 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_fmul);
|
|
709 |
break;
|
|
710 |
case Bytecodes::_fsub:
|
|
711 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_fsub_glibc);
|
|
712 |
break;
|
|
713 |
case Bytecodes::_fdiv:
|
|
714 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_fdiv);
|
|
715 |
break;
|
|
716 |
case Bytecodes::_dadd:
|
|
717 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_dadd_glibc);
|
|
718 |
break;
|
|
719 |
case Bytecodes::_dmul:
|
|
720 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_dmul);
|
|
721 |
break;
|
|
722 |
case Bytecodes::_dsub:
|
|
723 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_dsub_glibc);
|
|
724 |
break;
|
|
725 |
case Bytecodes::_ddiv:
|
|
726 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_ddiv);
|
|
727 |
break;
|
|
728 |
default:
|
|
729 |
ShouldNotReachHere();
|
|
730 |
#else // __SOFTFP__
|
|
731 |
default: {
|
|
732 |
LIRItem left(x->x(), this);
|
|
733 |
LIRItem right(x->y(), this);
|
|
734 |
left.load_item();
|
|
735 |
right.load_item();
|
|
736 |
rlock_result(x);
|
|
737 |
arithmetic_op_fpu(x->op(), x->operand(), left.result(), right.result(), x->is_strictfp());
|
|
738 |
return;
|
|
739 |
}
|
|
740 |
#endif // __SOFTFP__
|
|
741 |
}
|
|
742 |
|
|
743 |
LIR_Opr result = call_runtime(x->x(), x->y(), runtime_func, x->type(), NULL);
|
|
744 |
set_result(x, result);
|
|
745 |
}
|
|
746 |
|
|
747 |
|
|
748 |
void LIRGenerator::make_div_by_zero_check(LIR_Opr right_arg, BasicType type, CodeEmitInfo* info) {
|
|
749 |
assert(right_arg->is_register(), "must be");
|
|
750 |
__ cmp(lir_cond_equal, right_arg, make_constant(type, 0));
|
|
751 |
__ branch(lir_cond_equal, type, new DivByZeroStub(info));
|
|
752 |
}
|
|
753 |
|
|
754 |
|
|
755 |
// for _ladd, _lmul, _lsub, _ldiv, _lrem
|
|
756 |
void LIRGenerator::do_ArithmeticOp_Long(ArithmeticOp* x) {
|
|
757 |
CodeEmitInfo* info = NULL;
|
|
758 |
if (x->op() == Bytecodes::_ldiv || x->op() == Bytecodes::_lrem) {
|
|
759 |
info = state_for(x);
|
|
760 |
}
|
|
761 |
|
|
762 |
#ifdef AARCH64
|
|
763 |
LIRItem left(x->x(), this);
|
|
764 |
LIRItem right(x->y(), this);
|
|
765 |
LIRItem* left_arg = &left;
|
|
766 |
LIRItem* right_arg = &right;
|
|
767 |
|
|
768 |
// Test if instr is commutative and if we should swap
|
|
769 |
if (x->is_commutative() && left.is_constant()) {
|
|
770 |
left_arg = &right;
|
|
771 |
right_arg = &left;
|
|
772 |
}
|
|
773 |
|
|
774 |
left_arg->load_item();
|
|
775 |
switch (x->op()) {
|
|
776 |
case Bytecodes::_ldiv:
|
|
777 |
right_arg->load_item();
|
|
778 |
make_div_by_zero_check(right_arg->result(), T_LONG, info);
|
|
779 |
__ idiv(left_arg->result(), right_arg->result(), rlock_result(x), LIR_OprFact::illegalOpr, NULL);
|
|
780 |
break;
|
|
781 |
|
|
782 |
case Bytecodes::_lrem: {
|
|
783 |
right_arg->load_item();
|
|
784 |
make_div_by_zero_check(right_arg->result(), T_LONG, info);
|
|
785 |
// a % b is implemented with 2 instructions:
|
|
786 |
// tmp = a/b (sdiv)
|
|
787 |
// res = a - b*tmp (msub)
|
|
788 |
LIR_Opr tmp = FrameMap::as_long_opr(Rtemp);
|
|
789 |
__ irem(left_arg->result(), right_arg->result(), rlock_result(x), tmp, NULL);
|
|
790 |
break;
|
|
791 |
}
|
|
792 |
|
|
793 |
case Bytecodes::_lmul:
|
|
794 |
if (right_arg->is_constant() && is_power_of_2_long(right_arg->get_jlong_constant())) {
|
|
795 |
right_arg->dont_load_item();
|
|
796 |
__ shift_left(left_arg->result(), exact_log2_long(right_arg->get_jlong_constant()), rlock_result(x));
|
|
797 |
} else {
|
|
798 |
right_arg->load_item();
|
|
799 |
__ mul(left_arg->result(), right_arg->result(), rlock_result(x));
|
|
800 |
}
|
|
801 |
break;
|
|
802 |
|
|
803 |
case Bytecodes::_ladd:
|
|
804 |
case Bytecodes::_lsub:
|
|
805 |
if (right_arg->is_constant()) {
|
|
806 |
jlong c = right_arg->get_jlong_constant();
|
|
807 |
add_constant(left_arg->result(), (x->op() == Bytecodes::_ladd) ? c : -c, rlock_result(x));
|
|
808 |
} else {
|
|
809 |
right_arg->load_item();
|
|
810 |
arithmetic_op_long(x->op(), rlock_result(x), left_arg->result(), right_arg->result(), NULL);
|
|
811 |
}
|
|
812 |
break;
|
|
813 |
|
|
814 |
default:
|
|
815 |
ShouldNotReachHere();
|
|
816 |
}
|
|
817 |
#else
|
|
818 |
switch (x->op()) {
|
|
819 |
case Bytecodes::_ldiv:
|
|
820 |
case Bytecodes::_lrem: {
|
|
821 |
LIRItem right(x->y(), this);
|
|
822 |
right.load_item();
|
|
823 |
make_div_by_zero_check(right.result(), T_LONG, info);
|
|
824 |
}
|
|
825 |
// Fall through
|
|
826 |
case Bytecodes::_lmul: {
|
|
827 |
address entry;
|
|
828 |
switch (x->op()) {
|
|
829 |
case Bytecodes::_lrem:
|
|
830 |
entry = CAST_FROM_FN_PTR(address, SharedRuntime::lrem);
|
|
831 |
break;
|
|
832 |
case Bytecodes::_ldiv:
|
|
833 |
entry = CAST_FROM_FN_PTR(address, SharedRuntime::ldiv);
|
|
834 |
break;
|
|
835 |
case Bytecodes::_lmul:
|
|
836 |
entry = CAST_FROM_FN_PTR(address, SharedRuntime::lmul);
|
|
837 |
break;
|
|
838 |
default:
|
|
839 |
ShouldNotReachHere();
|
|
840 |
}
|
|
841 |
LIR_Opr result = call_runtime(x->y(), x->x(), entry, x->type(), NULL);
|
|
842 |
set_result(x, result);
|
|
843 |
break;
|
|
844 |
}
|
|
845 |
case Bytecodes::_ladd:
|
|
846 |
case Bytecodes::_lsub: {
|
|
847 |
LIRItem left(x->x(), this);
|
|
848 |
LIRItem right(x->y(), this);
|
|
849 |
left.load_item();
|
|
850 |
right.load_item();
|
|
851 |
rlock_result(x);
|
|
852 |
arithmetic_op_long(x->op(), x->operand(), left.result(), right.result(), NULL);
|
|
853 |
break;
|
|
854 |
}
|
|
855 |
default:
|
|
856 |
ShouldNotReachHere();
|
|
857 |
}
|
|
858 |
#endif // AARCH64
|
|
859 |
}
|
|
860 |
|
|
861 |
|
|
862 |
// for: _iadd, _imul, _isub, _idiv, _irem
|
|
863 |
void LIRGenerator::do_ArithmeticOp_Int(ArithmeticOp* x) {
|
|
864 |
bool is_div_rem = x->op() == Bytecodes::_idiv || x->op() == Bytecodes::_irem;
|
|
865 |
LIRItem left(x->x(), this);
|
|
866 |
LIRItem right(x->y(), this);
|
|
867 |
LIRItem* left_arg = &left;
|
|
868 |
LIRItem* right_arg = &right;
|
|
869 |
|
|
870 |
// Test if instr is commutative and if we should swap
|
|
871 |
if (x->is_commutative() && left.is_constant()) {
|
|
872 |
left_arg = &right;
|
|
873 |
right_arg = &left;
|
|
874 |
}
|
|
875 |
|
|
876 |
if (is_div_rem) {
|
|
877 |
CodeEmitInfo* info = state_for(x);
|
|
878 |
if (x->op() == Bytecodes::_idiv && right_arg->is_constant() && is_power_of_2(right_arg->get_jint_constant())) {
|
|
879 |
left_arg->load_item();
|
|
880 |
right_arg->dont_load_item();
|
|
881 |
LIR_Opr tmp = LIR_OprFact::illegalOpr;
|
|
882 |
LIR_Opr result = rlock_result(x);
|
|
883 |
__ idiv(left_arg->result(), right_arg->result(), result, tmp, info);
|
|
884 |
} else {
|
|
885 |
#ifdef AARCH64
|
|
886 |
left_arg->load_item();
|
|
887 |
right_arg->load_item();
|
|
888 |
make_div_by_zero_check(right_arg->result(), T_INT, info);
|
|
889 |
if (x->op() == Bytecodes::_idiv) {
|
|
890 |
__ idiv(left_arg->result(), right_arg->result(), rlock_result(x), LIR_OprFact::illegalOpr, NULL);
|
|
891 |
} else {
|
|
892 |
// a % b is implemented with 2 instructions:
|
|
893 |
// tmp = a/b (sdiv)
|
|
894 |
// res = a - b*tmp (msub)
|
|
895 |
LIR_Opr tmp = FrameMap::as_opr(Rtemp);
|
|
896 |
__ irem(left_arg->result(), right_arg->result(), rlock_result(x), tmp, NULL);
|
|
897 |
}
|
|
898 |
#else
|
|
899 |
left_arg->load_item_force(FrameMap::R0_opr);
|
|
900 |
right_arg->load_item_force(FrameMap::R2_opr);
|
|
901 |
LIR_Opr tmp = FrameMap::R1_opr;
|
|
902 |
LIR_Opr result = rlock_result(x);
|
|
903 |
LIR_Opr out_reg;
|
|
904 |
if (x->op() == Bytecodes::_irem) {
|
|
905 |
out_reg = FrameMap::R0_opr;
|
|
906 |
__ irem(left_arg->result(), right_arg->result(), out_reg, tmp, info);
|
|
907 |
} else if (x->op() == Bytecodes::_idiv) {
|
|
908 |
out_reg = FrameMap::R1_opr;
|
|
909 |
__ idiv(left_arg->result(), right_arg->result(), out_reg, tmp, info);
|
|
910 |
}
|
|
911 |
__ move(out_reg, result);
|
|
912 |
#endif // AARCH64
|
|
913 |
}
|
|
914 |
|
|
915 |
#ifdef AARCH64
|
|
916 |
} else if (((x->op() == Bytecodes::_iadd) || (x->op() == Bytecodes::_isub)) && right_arg->is_constant()) {
|
|
917 |
left_arg->load_item();
|
|
918 |
jint c = right_arg->get_jint_constant();
|
|
919 |
right_arg->dont_load_item();
|
|
920 |
add_constant(left_arg->result(), (x->op() == Bytecodes::_iadd) ? c : -c, rlock_result(x));
|
|
921 |
#endif // AARCH64
|
|
922 |
|
|
923 |
} else {
|
|
924 |
left_arg->load_item();
|
|
925 |
if (x->op() == Bytecodes::_imul && right_arg->is_constant()) {
|
|
926 |
int c = right_arg->get_jint_constant();
|
|
927 |
if (c > 0 && (is_power_of_2(c) || is_power_of_2(c - 1) || is_power_of_2(c + 1))) {
|
|
928 |
right_arg->dont_load_item();
|
|
929 |
} else {
|
|
930 |
right_arg->load_item();
|
|
931 |
}
|
|
932 |
} else {
|
|
933 |
AARCH64_ONLY(assert(!right_arg->is_constant(), "constant right_arg is already handled by this moment");)
|
|
934 |
right_arg->load_nonconstant();
|
|
935 |
}
|
|
936 |
rlock_result(x);
|
|
937 |
assert(right_arg->is_constant() || right_arg->is_register(), "wrong state of right");
|
|
938 |
arithmetic_op_int(x->op(), x->operand(), left_arg->result(), right_arg->result(), NULL);
|
|
939 |
}
|
|
940 |
}
|
|
941 |
|
|
942 |
|
|
943 |
void LIRGenerator::do_ArithmeticOp(ArithmeticOp* x) {
|
|
944 |
ValueTag tag = x->type()->tag();
|
|
945 |
assert(x->x()->type()->tag() == tag && x->y()->type()->tag() == tag, "wrong parameters");
|
|
946 |
switch (tag) {
|
|
947 |
case floatTag:
|
|
948 |
case doubleTag: do_ArithmeticOp_FPU(x); return;
|
|
949 |
case longTag: do_ArithmeticOp_Long(x); return;
|
|
950 |
case intTag: do_ArithmeticOp_Int(x); return;
|
|
951 |
}
|
|
952 |
ShouldNotReachHere();
|
|
953 |
}
|
|
954 |
|
|
955 |
|
|
956 |
// _ishl, _lshl, _ishr, _lshr, _iushr, _lushr
|
|
957 |
void LIRGenerator::do_ShiftOp(ShiftOp* x) {
|
|
958 |
LIRItem value(x->x(), this);
|
|
959 |
LIRItem count(x->y(), this);
|
|
960 |
|
|
961 |
#ifndef AARCH64
|
|
962 |
if (value.type()->is_long()) {
|
|
963 |
count.set_destroys_register();
|
|
964 |
}
|
|
965 |
#endif // !AARCH64
|
|
966 |
|
|
967 |
if (count.is_constant()) {
|
|
968 |
assert(count.type()->as_IntConstant() != NULL, "should be");
|
|
969 |
count.dont_load_item();
|
|
970 |
} else {
|
|
971 |
count.load_item();
|
|
972 |
}
|
|
973 |
value.load_item();
|
|
974 |
|
|
975 |
LIR_Opr res = rlock_result(x);
|
|
976 |
shift_op(x->op(), res, value.result(), count.result(), LIR_OprFact::illegalOpr);
|
|
977 |
}
|
|
978 |
|
|
979 |
|
|
980 |
// _iand, _land, _ior, _lor, _ixor, _lxor
|
|
981 |
void LIRGenerator::do_LogicOp(LogicOp* x) {
|
|
982 |
LIRItem left(x->x(), this);
|
|
983 |
LIRItem right(x->y(), this);
|
|
984 |
|
|
985 |
left.load_item();
|
|
986 |
|
|
987 |
#ifdef AARCH64
|
|
988 |
if (right.is_constant() && can_inline_as_constant_in_logic(right.value())) {
|
|
989 |
right.dont_load_item();
|
|
990 |
} else {
|
|
991 |
right.load_item();
|
|
992 |
}
|
|
993 |
#else
|
|
994 |
right.load_nonconstant();
|
|
995 |
#endif // AARCH64
|
|
996 |
|
|
997 |
logic_op(x->op(), rlock_result(x), left.result(), right.result());
|
|
998 |
}
|
|
999 |
|
|
1000 |
|
|
1001 |
// _lcmp, _fcmpl, _fcmpg, _dcmpl, _dcmpg
|
|
1002 |
void LIRGenerator::do_CompareOp(CompareOp* x) {
|
|
1003 |
#ifdef __SOFTFP__
|
|
1004 |
address runtime_func;
|
|
1005 |
switch (x->op()) {
|
|
1006 |
case Bytecodes::_fcmpl:
|
|
1007 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::fcmpl);
|
|
1008 |
break;
|
|
1009 |
case Bytecodes::_fcmpg:
|
|
1010 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::fcmpg);
|
|
1011 |
break;
|
|
1012 |
case Bytecodes::_dcmpl:
|
|
1013 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dcmpl);
|
|
1014 |
break;
|
|
1015 |
case Bytecodes::_dcmpg:
|
|
1016 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dcmpg);
|
|
1017 |
break;
|
|
1018 |
case Bytecodes::_lcmp: {
|
|
1019 |
LIRItem left(x->x(), this);
|
|
1020 |
LIRItem right(x->y(), this);
|
|
1021 |
left.load_item();
|
|
1022 |
right.load_nonconstant();
|
|
1023 |
LIR_Opr reg = rlock_result(x);
|
|
1024 |
__ lcmp2int(left.result(), right.result(), reg);
|
|
1025 |
return;
|
|
1026 |
}
|
|
1027 |
default:
|
|
1028 |
ShouldNotReachHere();
|
|
1029 |
}
|
|
1030 |
LIR_Opr result = call_runtime(x->x(), x->y(), runtime_func, x->type(), NULL);
|
|
1031 |
set_result(x, result);
|
|
1032 |
#else // __SOFTFP__
|
|
1033 |
LIRItem left(x->x(), this);
|
|
1034 |
LIRItem right(x->y(), this);
|
|
1035 |
left.load_item();
|
|
1036 |
|
|
1037 |
#ifdef AARCH64
|
|
1038 |
if (right.is_constant() && can_inline_as_constant_in_cmp(right.value())) {
|
|
1039 |
right.dont_load_item();
|
|
1040 |
} else {
|
|
1041 |
right.load_item();
|
|
1042 |
}
|
|
1043 |
#else
|
|
1044 |
right.load_nonconstant();
|
|
1045 |
#endif // AARCH64
|
|
1046 |
|
|
1047 |
LIR_Opr reg = rlock_result(x);
|
|
1048 |
|
|
1049 |
if (x->x()->type()->is_float_kind()) {
|
|
1050 |
Bytecodes::Code code = x->op();
|
|
1051 |
__ fcmp2int(left.result(), right.result(), reg, (code == Bytecodes::_fcmpl || code == Bytecodes::_dcmpl));
|
|
1052 |
} else if (x->x()->type()->tag() == longTag) {
|
|
1053 |
__ lcmp2int(left.result(), right.result(), reg);
|
|
1054 |
} else {
|
|
1055 |
ShouldNotReachHere();
|
|
1056 |
}
|
|
1057 |
#endif // __SOFTFP__
|
|
1058 |
}
|
|
1059 |
|
|
1060 |
|
|
1061 |
void LIRGenerator::do_CompareAndSwap(Intrinsic* x, ValueType* type) {
|
|
1062 |
assert(x->number_of_arguments() == 4, "wrong type");
|
|
1063 |
LIRItem obj (x->argument_at(0), this); // object
|
|
1064 |
LIRItem offset(x->argument_at(1), this); // offset of field
|
|
1065 |
LIRItem cmp (x->argument_at(2), this); // value to compare with field
|
|
1066 |
LIRItem val (x->argument_at(3), this); // replace field with val if matches cmp
|
|
1067 |
|
|
1068 |
LIR_Opr addr = new_pointer_register();
|
|
1069 |
LIR_Opr tmp1 = LIR_OprFact::illegalOpr;
|
|
1070 |
LIR_Opr tmp2 = LIR_OprFact::illegalOpr;
|
|
1071 |
|
|
1072 |
// get address of field
|
|
1073 |
obj.load_item();
|
|
1074 |
offset.load_item();
|
|
1075 |
cmp.load_item();
|
|
1076 |
val.load_item();
|
|
1077 |
|
|
1078 |
__ add(obj.result(), offset.result(), addr);
|
|
1079 |
LIR_Opr result = rlock_result(x);
|
|
1080 |
|
|
1081 |
if (type == objectType) {
|
|
1082 |
#if INCLUDE_ALL_GCS
|
|
1083 |
// Do the pre-write barrier, if any.
|
|
1084 |
pre_barrier(addr, LIR_OprFact::illegalOpr /* pre_val */,
|
|
1085 |
true /* do_load */, false /* patch */, NULL);
|
|
1086 |
#endif // INCLUDE_ALL_GCS
|
|
1087 |
#ifdef AARCH64
|
|
1088 |
if (UseCompressedOops) {
|
|
1089 |
tmp1 = new_pointer_register();
|
|
1090 |
tmp2 = new_pointer_register();
|
|
1091 |
}
|
|
1092 |
#endif // AARCH64
|
|
1093 |
__ cas_obj(addr, cmp.result(), val.result(), tmp1, tmp2, result);
|
|
1094 |
post_barrier(addr, val.result());
|
|
1095 |
}
|
|
1096 |
else if (type == intType) {
|
|
1097 |
__ cas_int(addr, cmp.result(), val.result(), tmp1, tmp1, result);
|
|
1098 |
}
|
|
1099 |
else if (type == longType) {
|
|
1100 |
#ifndef AARCH64
|
|
1101 |
tmp1 = new_register(T_LONG);
|
|
1102 |
#endif // !AARCH64
|
|
1103 |
__ cas_long(addr, cmp.result(), val.result(), tmp1, tmp2, result);
|
|
1104 |
}
|
|
1105 |
else {
|
|
1106 |
ShouldNotReachHere();
|
|
1107 |
}
|
|
1108 |
}
|
|
1109 |
|
|
1110 |
|
|
1111 |
void LIRGenerator::do_MathIntrinsic(Intrinsic* x) {
|
|
1112 |
address runtime_func;
|
|
1113 |
switch (x->id()) {
|
|
1114 |
case vmIntrinsics::_dabs: {
|
|
1115 |
#ifdef __SOFTFP__
|
|
1116 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dabs);
|
|
1117 |
break;
|
|
1118 |
#else
|
|
1119 |
assert(x->number_of_arguments() == 1, "wrong type");
|
|
1120 |
LIRItem value(x->argument_at(0), this);
|
|
1121 |
value.load_item();
|
|
1122 |
__ abs(value.result(), rlock_result(x), LIR_OprFact::illegalOpr);
|
|
1123 |
return;
|
|
1124 |
#endif // __SOFTFP__
|
|
1125 |
}
|
|
1126 |
case vmIntrinsics::_dsqrt: {
|
|
1127 |
#ifdef __SOFTFP__
|
|
1128 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dsqrt);
|
|
1129 |
break;
|
|
1130 |
#else
|
|
1131 |
assert(x->number_of_arguments() == 1, "wrong type");
|
|
1132 |
LIRItem value(x->argument_at(0), this);
|
|
1133 |
value.load_item();
|
|
1134 |
__ sqrt(value.result(), rlock_result(x), LIR_OprFact::illegalOpr);
|
|
1135 |
return;
|
|
1136 |
#endif // __SOFTFP__
|
|
1137 |
}
|
|
1138 |
case vmIntrinsics::_dsin:
|
|
1139 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dsin);
|
|
1140 |
break;
|
|
1141 |
case vmIntrinsics::_dcos:
|
|
1142 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dcos);
|
|
1143 |
break;
|
|
1144 |
case vmIntrinsics::_dtan:
|
|
1145 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dtan);
|
|
1146 |
break;
|
|
1147 |
case vmIntrinsics::_dlog:
|
|
1148 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dlog);
|
|
1149 |
break;
|
|
1150 |
case vmIntrinsics::_dlog10:
|
|
1151 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dlog10);
|
|
1152 |
break;
|
|
1153 |
case vmIntrinsics::_dexp:
|
|
1154 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dexp);
|
|
1155 |
break;
|
|
1156 |
case vmIntrinsics::_dpow:
|
|
1157 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::dpow);
|
|
1158 |
break;
|
|
1159 |
default:
|
|
1160 |
ShouldNotReachHere();
|
|
1161 |
return;
|
|
1162 |
}
|
|
1163 |
|
|
1164 |
LIR_Opr result;
|
|
1165 |
if (x->number_of_arguments() == 1) {
|
|
1166 |
result = call_runtime(x->argument_at(0), runtime_func, x->type(), NULL);
|
|
1167 |
} else {
|
|
1168 |
assert(x->number_of_arguments() == 2 && x->id() == vmIntrinsics::_dpow, "unexpected intrinsic");
|
|
1169 |
result = call_runtime(x->argument_at(0), x->argument_at(1), runtime_func, x->type(), NULL);
|
|
1170 |
}
|
|
1171 |
set_result(x, result);
|
|
1172 |
}
|
|
1173 |
|
|
1174 |
void LIRGenerator::do_FmaIntrinsic(Intrinsic* x) {
|
|
1175 |
fatal("FMA intrinsic is not implemented on this platform");
|
|
1176 |
}
|
|
1177 |
|
|
1178 |
void LIRGenerator::do_vectorizedMismatch(Intrinsic* x) {
|
|
1179 |
fatal("vectorizedMismatch intrinsic is not implemented on this platform");
|
|
1180 |
}
|
|
1181 |
|
|
1182 |
void LIRGenerator::do_ArrayCopy(Intrinsic* x) {
|
|
1183 |
CodeEmitInfo* info = state_for(x, x->state());
|
|
1184 |
assert(x->number_of_arguments() == 5, "wrong type");
|
|
1185 |
LIRItem src(x->argument_at(0), this);
|
|
1186 |
LIRItem src_pos(x->argument_at(1), this);
|
|
1187 |
LIRItem dst(x->argument_at(2), this);
|
|
1188 |
LIRItem dst_pos(x->argument_at(3), this);
|
|
1189 |
LIRItem length(x->argument_at(4), this);
|
|
1190 |
|
|
1191 |
// We put arguments into the same registers which are used for a Java call.
|
|
1192 |
// Note: we used fixed registers for all arguments because all registers
|
|
1193 |
// are caller-saved, so register allocator treats them all as used.
|
|
1194 |
src.load_item_force (FrameMap::R0_oop_opr);
|
|
1195 |
src_pos.load_item_force(FrameMap::R1_opr);
|
|
1196 |
dst.load_item_force (FrameMap::R2_oop_opr);
|
|
1197 |
dst_pos.load_item_force(FrameMap::R3_opr);
|
|
1198 |
length.load_item_force (FrameMap::R4_opr);
|
|
1199 |
LIR_Opr tmp = (FrameMap::R5_opr);
|
|
1200 |
set_no_result(x);
|
|
1201 |
|
|
1202 |
int flags;
|
|
1203 |
ciArrayKlass* expected_type;
|
|
1204 |
arraycopy_helper(x, &flags, &expected_type);
|
|
1205 |
__ arraycopy(src.result(), src_pos.result(), dst.result(), dst_pos.result(), length.result(),
|
|
1206 |
tmp, expected_type, flags, info);
|
|
1207 |
}
|
|
1208 |
|
|
1209 |
void LIRGenerator::do_update_CRC32(Intrinsic* x) {
|
|
1210 |
fatal("CRC32 intrinsic is not implemented on this platform");
|
|
1211 |
}
|
|
1212 |
|
|
1213 |
void LIRGenerator::do_update_CRC32C(Intrinsic* x) {
|
|
1214 |
Unimplemented();
|
|
1215 |
}
|
|
1216 |
|
|
1217 |
void LIRGenerator::do_Convert(Convert* x) {
|
|
1218 |
address runtime_func;
|
|
1219 |
switch (x->op()) {
|
|
1220 |
#ifndef AARCH64
|
|
1221 |
case Bytecodes::_l2f:
|
|
1222 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::l2f);
|
|
1223 |
break;
|
|
1224 |
case Bytecodes::_l2d:
|
|
1225 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::l2d);
|
|
1226 |
break;
|
|
1227 |
case Bytecodes::_f2l:
|
|
1228 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::f2l);
|
|
1229 |
break;
|
|
1230 |
case Bytecodes::_d2l:
|
|
1231 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::d2l);
|
|
1232 |
break;
|
|
1233 |
#ifdef __SOFTFP__
|
|
1234 |
case Bytecodes::_f2d:
|
|
1235 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_f2d);
|
|
1236 |
break;
|
|
1237 |
case Bytecodes::_d2f:
|
|
1238 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_d2f);
|
|
1239 |
break;
|
|
1240 |
case Bytecodes::_i2f:
|
|
1241 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_i2f);
|
|
1242 |
break;
|
|
1243 |
case Bytecodes::_i2d:
|
|
1244 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_i2d);
|
|
1245 |
break;
|
|
1246 |
case Bytecodes::_f2i:
|
|
1247 |
runtime_func = CAST_FROM_FN_PTR(address, __aeabi_f2iz);
|
|
1248 |
break;
|
|
1249 |
case Bytecodes::_d2i:
|
|
1250 |
// This is implemented in hard float in assembler on arm but a call
|
|
1251 |
// on other platforms.
|
|
1252 |
runtime_func = CAST_FROM_FN_PTR(address, SharedRuntime::d2i);
|
|
1253 |
break;
|
|
1254 |
#endif // __SOFTFP__
|
|
1255 |
#endif // !AARCH64
|
|
1256 |
default: {
|
|
1257 |
LIRItem value(x->value(), this);
|
|
1258 |
value.load_item();
|
|
1259 |
LIR_Opr reg = rlock_result(x);
|
|
1260 |
__ convert(x->op(), value.result(), reg, NULL);
|
|
1261 |
return;
|
|
1262 |
}
|
|
1263 |
}
|
|
1264 |
|
|
1265 |
LIR_Opr result = call_runtime(x->value(), runtime_func, x->type(), NULL);
|
|
1266 |
set_result(x, result);
|
|
1267 |
}
|
|
1268 |
|
|
1269 |
|
|
1270 |
void LIRGenerator::do_NewInstance(NewInstance* x) {
|
|
1271 |
print_if_not_loaded(x);
|
|
1272 |
|
|
1273 |
CodeEmitInfo* info = state_for(x, x->state());
|
|
1274 |
LIR_Opr reg = result_register_for(x->type()); // R0 is required by runtime call in NewInstanceStub::emit_code
|
|
1275 |
LIR_Opr klass_reg = FrameMap::R1_metadata_opr; // R1 is required by runtime call in NewInstanceStub::emit_code
|
|
1276 |
LIR_Opr tmp1 = new_register(objectType);
|
|
1277 |
LIR_Opr tmp2 = new_register(objectType);
|
|
1278 |
LIR_Opr tmp3 = FrameMap::LR_oop_opr;
|
|
1279 |
|
|
1280 |
new_instance(reg, x->klass(), x->is_unresolved(), tmp1, tmp2, tmp3,
|
|
1281 |
LIR_OprFact::illegalOpr, klass_reg, info);
|
|
1282 |
|
|
1283 |
LIR_Opr result = rlock_result(x);
|
|
1284 |
__ move(reg, result);
|
|
1285 |
}
|
|
1286 |
|
|
1287 |
|
|
1288 |
void LIRGenerator::do_NewTypeArray(NewTypeArray* x) {
|
|
1289 |
// Evaluate state_for() first, because it can emit code
|
|
1290 |
// with the same fixed registers that are used here (R1, R2)
|
|
1291 |
CodeEmitInfo* info = state_for(x, x->state());
|
|
1292 |
LIRItem length(x->length(), this);
|
|
1293 |
|
|
1294 |
length.load_item_force(FrameMap::R2_opr); // R2 is required by runtime call in NewTypeArrayStub::emit_code
|
|
1295 |
LIR_Opr len = length.result();
|
|
1296 |
|
|
1297 |
LIR_Opr reg = result_register_for(x->type()); // R0 is required by runtime call in NewTypeArrayStub::emit_code
|
|
1298 |
LIR_Opr klass_reg = FrameMap::R1_metadata_opr; // R1 is required by runtime call in NewTypeArrayStub::emit_code
|
|
1299 |
|
|
1300 |
LIR_Opr tmp1 = new_register(objectType);
|
|
1301 |
LIR_Opr tmp2 = new_register(objectType);
|
|
1302 |
LIR_Opr tmp3 = FrameMap::LR_oop_opr;
|
|
1303 |
LIR_Opr tmp4 = LIR_OprFact::illegalOpr;
|
|
1304 |
|
|
1305 |
BasicType elem_type = x->elt_type();
|
|
1306 |
__ metadata2reg(ciTypeArrayKlass::make(elem_type)->constant_encoding(), klass_reg);
|
|
1307 |
|
|
1308 |
CodeStub* slow_path = new NewTypeArrayStub(klass_reg, len, reg, info);
|
|
1309 |
__ allocate_array(reg, len, tmp1, tmp2, tmp3, tmp4, elem_type, klass_reg, slow_path);
|
|
1310 |
|
|
1311 |
LIR_Opr result = rlock_result(x);
|
|
1312 |
__ move(reg, result);
|
|
1313 |
}
|
|
1314 |
|
|
1315 |
|
|
1316 |
void LIRGenerator::do_NewObjectArray(NewObjectArray* x) {
|
|
1317 |
// Evaluate state_for() first, because it can emit code
|
|
1318 |
// with the same fixed registers that are used here (R1, R2)
|
|
1319 |
CodeEmitInfo* info = state_for(x, x->state());
|
|
1320 |
LIRItem length(x->length(), this);
|
|
1321 |
|
|
1322 |
length.load_item_force(FrameMap::R2_opr); // R2 is required by runtime call in NewObjectArrayStub::emit_code
|
|
1323 |
LIR_Opr len = length.result();
|
|
1324 |
|
|
1325 |
CodeEmitInfo* patching_info = NULL;
|
|
1326 |
if (!x->klass()->is_loaded() || PatchALot) {
|
|
1327 |
patching_info = state_for(x, x->state_before());
|
|
1328 |
}
|
|
1329 |
|
|
1330 |
LIR_Opr reg = result_register_for(x->type()); // R0 is required by runtime call in NewObjectArrayStub::emit_code
|
|
1331 |
LIR_Opr klass_reg = FrameMap::R1_metadata_opr; // R1 is required by runtime call in NewObjectArrayStub::emit_code
|
|
1332 |
|
|
1333 |
LIR_Opr tmp1 = new_register(objectType);
|
|
1334 |
LIR_Opr tmp2 = new_register(objectType);
|
|
1335 |
LIR_Opr tmp3 = FrameMap::LR_oop_opr;
|
|
1336 |
LIR_Opr tmp4 = LIR_OprFact::illegalOpr;
|
|
1337 |
|
|
1338 |
CodeStub* slow_path = new NewObjectArrayStub(klass_reg, len, reg, info);
|
|
1339 |
ciMetadata* obj = ciObjArrayKlass::make(x->klass());
|
|
1340 |
if (obj == ciEnv::unloaded_ciobjarrayklass()) {
|
|
1341 |
BAILOUT("encountered unloaded_ciobjarrayklass due to out of memory error");
|
|
1342 |
}
|
|
1343 |
klass2reg_with_patching(klass_reg, obj, patching_info);
|
|
1344 |
__ allocate_array(reg, len, tmp1, tmp2, tmp3, tmp4, T_OBJECT, klass_reg, slow_path);
|
|
1345 |
|
|
1346 |
LIR_Opr result = rlock_result(x);
|
|
1347 |
__ move(reg, result);
|
|
1348 |
}
|
|
1349 |
|
|
1350 |
|
|
1351 |
void LIRGenerator::do_NewMultiArray(NewMultiArray* x) {
|
|
1352 |
Values* dims = x->dims();
|
|
1353 |
int i = dims->length();
|
|
1354 |
LIRItemList* items = new LIRItemList(i, i, NULL);
|
|
1355 |
while (i-- > 0) {
|
|
1356 |
LIRItem* size = new LIRItem(dims->at(i), this);
|
|
1357 |
items->at_put(i, size);
|
|
1358 |
}
|
|
1359 |
|
|
1360 |
// Need to get the info before, as the items may become invalid through item_free
|
|
1361 |
CodeEmitInfo* patching_info = NULL;
|
|
1362 |
if (!x->klass()->is_loaded() || PatchALot) {
|
|
1363 |
patching_info = state_for(x, x->state_before());
|
|
1364 |
|
|
1365 |
// Cannot re-use same xhandlers for multiple CodeEmitInfos, so
|
|
1366 |
// clone all handlers (NOTE: Usually this is handled transparently
|
|
1367 |
// by the CodeEmitInfo cloning logic in CodeStub constructors but
|
|
1368 |
// is done explicitly here because a stub isn't being used).
|
|
1369 |
x->set_exception_handlers(new XHandlers(x->exception_handlers()));
|
|
1370 |
}
|
|
1371 |
|
|
1372 |
i = dims->length();
|
|
1373 |
while (i-- > 0) {
|
|
1374 |
LIRItem* size = items->at(i);
|
|
1375 |
size->load_item();
|
|
1376 |
LIR_Opr sz = size->result();
|
|
1377 |
assert(sz->type() == T_INT, "should be");
|
|
1378 |
store_stack_parameter(sz, in_ByteSize(i * BytesPerInt));
|
|
1379 |
}
|
|
1380 |
|
|
1381 |
CodeEmitInfo* info = state_for(x, x->state());
|
|
1382 |
LIR_Opr klass_reg = FrameMap::R0_metadata_opr;
|
|
1383 |
klass2reg_with_patching(klass_reg, x->klass(), patching_info);
|
|
1384 |
|
|
1385 |
LIR_Opr rank = FrameMap::R2_opr;
|
|
1386 |
__ move(LIR_OprFact::intConst(x->rank()), rank);
|
|
1387 |
LIR_Opr varargs = FrameMap::SP_opr;
|
|
1388 |
LIR_OprList* args = new LIR_OprList(3);
|
|
1389 |
args->append(klass_reg);
|
|
1390 |
args->append(rank);
|
|
1391 |
args->append(varargs);
|
|
1392 |
LIR_Opr reg = result_register_for(x->type());
|
|
1393 |
__ call_runtime(Runtime1::entry_for(Runtime1::new_multi_array_id),
|
|
1394 |
LIR_OprFact::illegalOpr, reg, args, info);
|
|
1395 |
|
|
1396 |
LIR_Opr result = rlock_result(x);
|
|
1397 |
__ move(reg, result);
|
|
1398 |
}
|
|
1399 |
|
|
1400 |
|
|
1401 |
void LIRGenerator::do_BlockBegin(BlockBegin* x) {
|
|
1402 |
// nothing to do for now
|
|
1403 |
}
|
|
1404 |
|
|
1405 |
|
|
1406 |
void LIRGenerator::do_CheckCast(CheckCast* x) {
|
|
1407 |
LIRItem obj(x->obj(), this);
|
|
1408 |
CodeEmitInfo* patching_info = NULL;
|
|
1409 |
if (!x->klass()->is_loaded() || (PatchALot && !x->is_incompatible_class_change_check())) {
|
|
1410 |
patching_info = state_for(x, x->state_before());
|
|
1411 |
}
|
|
1412 |
|
|
1413 |
obj.load_item();
|
|
1414 |
|
44738
|
1415 |
CodeEmitInfo* info_for_exception =
|
|
1416 |
(x->needs_exception_state() ? state_for(x) :
|
|
1417 |
state_for(x, x->state_before(), true /*ignore_xhandler*/));
|
|
1418 |
|
42664
|
1419 |
CodeStub* stub;
|
|
1420 |
if (x->is_incompatible_class_change_check()) {
|
|
1421 |
assert(patching_info == NULL, "can't patch this");
|
|
1422 |
stub = new SimpleExceptionStub(Runtime1::throw_incompatible_class_change_error_id,
|
|
1423 |
LIR_OprFact::illegalOpr, info_for_exception);
|
44738
|
1424 |
} else if (x->is_invokespecial_receiver_check()) {
|
|
1425 |
assert(patching_info == NULL, "can't patch this");
|
|
1426 |
stub = new DeoptimizeStub(info_for_exception,
|
|
1427 |
Deoptimization::Reason_class_check,
|
|
1428 |
Deoptimization::Action_none);
|
42664
|
1429 |
} else {
|
|
1430 |
stub = new SimpleExceptionStub(Runtime1::throw_class_cast_exception_id,
|
|
1431 |
LIR_OprFact::illegalOpr, info_for_exception);
|
|
1432 |
}
|
|
1433 |
|
|
1434 |
LIR_Opr out_reg = rlock_result(x);
|
|
1435 |
LIR_Opr tmp1 = FrameMap::R0_oop_opr;
|
|
1436 |
LIR_Opr tmp2 = FrameMap::R1_oop_opr;
|
|
1437 |
LIR_Opr tmp3 = LIR_OprFact::illegalOpr;
|
|
1438 |
|
|
1439 |
__ checkcast(out_reg, obj.result(), x->klass(), tmp1, tmp2, tmp3, x->direct_compare(),
|
|
1440 |
info_for_exception, patching_info, stub, x->profiled_method(), x->profiled_bci());
|
|
1441 |
}
|
|
1442 |
|
|
1443 |
|
|
1444 |
void LIRGenerator::do_InstanceOf(InstanceOf* x) {
|
|
1445 |
LIRItem obj(x->obj(), this);
|
|
1446 |
CodeEmitInfo* patching_info = NULL;
|
|
1447 |
if (!x->klass()->is_loaded() || PatchALot) {
|
|
1448 |
patching_info = state_for(x, x->state_before());
|
|
1449 |
}
|
|
1450 |
|
|
1451 |
obj.load_item();
|
|
1452 |
LIR_Opr out_reg = rlock_result(x);
|
|
1453 |
LIR_Opr tmp1 = FrameMap::R0_oop_opr;
|
|
1454 |
LIR_Opr tmp2 = FrameMap::R1_oop_opr;
|
|
1455 |
LIR_Opr tmp3 = LIR_OprFact::illegalOpr;
|
|
1456 |
|
|
1457 |
__ instanceof(out_reg, obj.result(), x->klass(), tmp1, tmp2, tmp3,
|
|
1458 |
x->direct_compare(), patching_info, x->profiled_method(), x->profiled_bci());
|
|
1459 |
}
|
|
1460 |
|
|
1461 |
|
|
1462 |
#ifdef __SOFTFP__
|
|
1463 |
// Turn operator if (f <op> g) into runtime call:
|
|
1464 |
// call _aeabi_fcmp<op>(f, g)
|
|
1465 |
// cmp(eq, 1)
|
|
1466 |
// branch(eq, true path).
|
|
1467 |
void LIRGenerator::do_soft_float_compare(If* x) {
|
|
1468 |
assert(x->number_of_sux() == 2, "inconsistency");
|
|
1469 |
ValueTag tag = x->x()->type()->tag();
|
|
1470 |
If::Condition cond = x->cond();
|
|
1471 |
address runtime_func;
|
|
1472 |
// unordered comparison gets the wrong answer because aeabi functions
|
|
1473 |
// return false.
|
|
1474 |
bool unordered_is_true = x->unordered_is_true();
|
|
1475 |
// reverse of condition for ne
|
|
1476 |
bool compare_to_zero = false;
|
|
1477 |
switch (lir_cond(cond)) {
|
|
1478 |
case lir_cond_notEqual:
|
|
1479 |
compare_to_zero = true; // fall through
|
|
1480 |
case lir_cond_equal:
|
|
1481 |
runtime_func = tag == floatTag ?
|
|
1482 |
CAST_FROM_FN_PTR(address, __aeabi_fcmpeq):
|
|
1483 |
CAST_FROM_FN_PTR(address, __aeabi_dcmpeq);
|
|
1484 |
break;
|
|
1485 |
case lir_cond_less:
|
|
1486 |
if (unordered_is_true) {
|
|
1487 |
runtime_func = tag == floatTag ?
|
|
1488 |
CAST_FROM_FN_PTR(address, SharedRuntime::unordered_fcmplt):
|
|
1489 |
CAST_FROM_FN_PTR(address, SharedRuntime::unordered_dcmplt);
|
|
1490 |
} else {
|
|
1491 |
runtime_func = tag == floatTag ?
|
|
1492 |
CAST_FROM_FN_PTR(address, __aeabi_fcmplt):
|
|
1493 |
CAST_FROM_FN_PTR(address, __aeabi_dcmplt);
|
|
1494 |
}
|
|
1495 |
break;
|
|
1496 |
case lir_cond_lessEqual:
|
|
1497 |
if (unordered_is_true) {
|
|
1498 |
runtime_func = tag == floatTag ?
|
|
1499 |
CAST_FROM_FN_PTR(address, SharedRuntime::unordered_fcmple):
|
|
1500 |
CAST_FROM_FN_PTR(address, SharedRuntime::unordered_dcmple);
|
|
1501 |
} else {
|
|
1502 |
runtime_func = tag == floatTag ?
|
|
1503 |
CAST_FROM_FN_PTR(address, __aeabi_fcmple):
|
|
1504 |
CAST_FROM_FN_PTR(address, __aeabi_dcmple);
|
|
1505 |
}
|
|
1506 |
break;
|
|
1507 |
case lir_cond_greaterEqual:
|
|
1508 |
if (unordered_is_true) {
|
|
1509 |
runtime_func = tag == floatTag ?
|
|
1510 |
CAST_FROM_FN_PTR(address, SharedRuntime::unordered_fcmpge):
|
|
1511 |
CAST_FROM_FN_PTR(address, SharedRuntime::unordered_dcmpge);
|
|
1512 |
} else {
|
|
1513 |
runtime_func = tag == floatTag ?
|
|
1514 |
CAST_FROM_FN_PTR(address, __aeabi_fcmpge):
|
|
1515 |
CAST_FROM_FN_PTR(address, __aeabi_dcmpge);
|
|
1516 |
}
|
|
1517 |
break;
|
|
1518 |
case lir_cond_greater:
|
|
1519 |
if (unordered_is_true) {
|
|
1520 |
runtime_func = tag == floatTag ?
|
|
1521 |
CAST_FROM_FN_PTR(address, SharedRuntime::unordered_fcmpgt):
|
|
1522 |
CAST_FROM_FN_PTR(address, SharedRuntime::unordered_dcmpgt);
|
|
1523 |
} else {
|
|
1524 |
runtime_func = tag == floatTag ?
|
|
1525 |
CAST_FROM_FN_PTR(address, __aeabi_fcmpgt):
|
|
1526 |
CAST_FROM_FN_PTR(address, __aeabi_dcmpgt);
|
|
1527 |
}
|
|
1528 |
break;
|
|
1529 |
case lir_cond_aboveEqual:
|
|
1530 |
case lir_cond_belowEqual:
|
|
1531 |
ShouldNotReachHere(); // We're not going to get these.
|
|
1532 |
default:
|
|
1533 |
assert(lir_cond(cond) == lir_cond_always, "must be");
|
|
1534 |
ShouldNotReachHere();
|
|
1535 |
}
|
|
1536 |
set_no_result(x);
|
|
1537 |
|
|
1538 |
// add safepoint before generating condition code so it can be recomputed
|
|
1539 |
if (x->is_safepoint()) {
|
|
1540 |
increment_backedge_counter(state_for(x, x->state_before()), x->profiled_bci());
|
|
1541 |
__ safepoint(LIR_OprFact::illegalOpr, state_for(x, x->state_before()));
|
|
1542 |
}
|
|
1543 |
// Call float compare function, returns (1,0) if true or false.
|
|
1544 |
LIR_Opr result = call_runtime(x->x(), x->y(), runtime_func, intType, NULL);
|
|
1545 |
__ cmp(lir_cond_equal, result,
|
|
1546 |
compare_to_zero ?
|
|
1547 |
LIR_OprFact::intConst(0) : LIR_OprFact::intConst(1));
|
|
1548 |
profile_branch(x, cond);
|
|
1549 |
move_to_phi(x->state());
|
|
1550 |
__ branch(lir_cond_equal, T_INT, x->tsux());
|
|
1551 |
}
|
|
1552 |
#endif // __SOFTFP__
|
|
1553 |
|
|
1554 |
void LIRGenerator::do_If(If* x) {
|
|
1555 |
assert(x->number_of_sux() == 2, "inconsistency");
|
|
1556 |
ValueTag tag = x->x()->type()->tag();
|
|
1557 |
|
|
1558 |
#ifdef __SOFTFP__
|
|
1559 |
if (tag == floatTag || tag == doubleTag) {
|
|
1560 |
do_soft_float_compare(x);
|
|
1561 |
assert(x->default_sux() == x->fsux(), "wrong destination above");
|
|
1562 |
__ jump(x->default_sux());
|
|
1563 |
return;
|
|
1564 |
}
|
|
1565 |
#endif // __SOFTFP__
|
|
1566 |
|
|
1567 |
LIRItem xitem(x->x(), this);
|
|
1568 |
LIRItem yitem(x->y(), this);
|
|
1569 |
LIRItem* xin = &xitem;
|
|
1570 |
LIRItem* yin = &yitem;
|
|
1571 |
If::Condition cond = x->cond();
|
|
1572 |
|
|
1573 |
#ifndef AARCH64
|
|
1574 |
if (tag == longTag) {
|
|
1575 |
if (cond == If::gtr || cond == If::leq) {
|
|
1576 |
cond = Instruction::mirror(cond);
|
|
1577 |
xin = &yitem;
|
|
1578 |
yin = &xitem;
|
|
1579 |
}
|
|
1580 |
xin->set_destroys_register();
|
|
1581 |
}
|
|
1582 |
#endif // !AARCH64
|
|
1583 |
|
|
1584 |
xin->load_item();
|
|
1585 |
LIR_Opr left = xin->result();
|
|
1586 |
LIR_Opr right;
|
|
1587 |
|
|
1588 |
#ifdef AARCH64
|
|
1589 |
if (yin->is_constant() && can_inline_as_constant_in_cmp(yin->value())) {
|
|
1590 |
yin->dont_load_item();
|
|
1591 |
} else {
|
|
1592 |
yin->load_item();
|
|
1593 |
}
|
|
1594 |
right = yin->result();
|
|
1595 |
#else
|
|
1596 |
if (tag == longTag && yin->is_constant() && yin->get_jlong_constant() == 0 &&
|
|
1597 |
(cond == If::eql || cond == If::neq)) {
|
|
1598 |
// inline long zero
|
|
1599 |
right = LIR_OprFact::value_type(yin->value()->type());
|
|
1600 |
} else {
|
|
1601 |
yin->load_nonconstant();
|
|
1602 |
right = yin->result();
|
|
1603 |
}
|
|
1604 |
#endif // AARCH64
|
|
1605 |
|
|
1606 |
set_no_result(x);
|
|
1607 |
|
|
1608 |
// add safepoint before generating condition code so it can be recomputed
|
|
1609 |
if (x->is_safepoint()) {
|
|
1610 |
increment_backedge_counter(state_for(x, x->state_before()), x->profiled_bci());
|
|
1611 |
__ safepoint(LIR_OprFact::illegalOpr, state_for(x, x->state_before()));
|
|
1612 |
}
|
|
1613 |
|
|
1614 |
__ cmp(lir_cond(cond), left, right);
|
|
1615 |
profile_branch(x, cond);
|
|
1616 |
move_to_phi(x->state());
|
|
1617 |
if (x->x()->type()->is_float_kind()) {
|
|
1618 |
__ branch(lir_cond(cond), right->type(), x->tsux(), x->usux());
|
|
1619 |
} else {
|
|
1620 |
__ branch(lir_cond(cond), right->type(), x->tsux());
|
|
1621 |
}
|
|
1622 |
assert(x->default_sux() == x->fsux(), "wrong destination above");
|
|
1623 |
__ jump(x->default_sux());
|
|
1624 |
}
|
|
1625 |
|
|
1626 |
|
|
1627 |
LIR_Opr LIRGenerator::getThreadPointer() {
|
|
1628 |
return FrameMap::Rthread_opr;
|
|
1629 |
}
|
|
1630 |
|
|
1631 |
void LIRGenerator::trace_block_entry(BlockBegin* block) {
|
|
1632 |
__ move(LIR_OprFact::intConst(block->block_id()), FrameMap::R0_opr);
|
|
1633 |
LIR_OprList* args = new LIR_OprList(1);
|
|
1634 |
args->append(FrameMap::R0_opr);
|
|
1635 |
address func = CAST_FROM_FN_PTR(address, Runtime1::trace_block_entry);
|
|
1636 |
__ call_runtime_leaf(func, getThreadTemp(), LIR_OprFact::illegalOpr, args);
|
|
1637 |
}
|
|
1638 |
|
|
1639 |
|
|
1640 |
void LIRGenerator::volatile_field_store(LIR_Opr value, LIR_Address* address,
|
|
1641 |
CodeEmitInfo* info) {
|
|
1642 |
#ifndef AARCH64
|
|
1643 |
if (value->is_double_cpu()) {
|
|
1644 |
assert(address->index()->is_illegal(), "should have a constant displacement");
|
|
1645 |
LIR_Opr tmp = new_pointer_register();
|
|
1646 |
add_large_constant(address->base(), address->disp(), tmp);
|
|
1647 |
__ volatile_store_mem_reg(value, new LIR_Address(tmp, (intx)0, address->type()), info);
|
|
1648 |
return;
|
|
1649 |
}
|
|
1650 |
#endif // !AARCH64
|
|
1651 |
// TODO-AARCH64 implement with stlr instruction
|
|
1652 |
__ store(value, address, info, lir_patch_none);
|
|
1653 |
}
|
|
1654 |
|
|
1655 |
void LIRGenerator::volatile_field_load(LIR_Address* address, LIR_Opr result,
|
|
1656 |
CodeEmitInfo* info) {
|
|
1657 |
#ifndef AARCH64
|
|
1658 |
if (result->is_double_cpu()) {
|
|
1659 |
assert(address->index()->is_illegal(), "should have a constant displacement");
|
|
1660 |
LIR_Opr tmp = new_pointer_register();
|
|
1661 |
add_large_constant(address->base(), address->disp(), tmp);
|
|
1662 |
__ volatile_load_mem_reg(new LIR_Address(tmp, (intx)0, address->type()), result, info);
|
|
1663 |
return;
|
|
1664 |
}
|
|
1665 |
#endif // !AARCH64
|
|
1666 |
// TODO-AARCH64 implement with ldar instruction
|
|
1667 |
__ load(address, result, info, lir_patch_none);
|
|
1668 |
}
|
|
1669 |
|
|
1670 |
void LIRGenerator::get_Object_unsafe(LIR_Opr dst, LIR_Opr src, LIR_Opr offset,
|
|
1671 |
BasicType type, bool is_volatile) {
|
|
1672 |
#ifdef AARCH64
|
|
1673 |
__ load(new LIR_Address(src, offset, type), dst);
|
|
1674 |
#else
|
|
1675 |
assert(offset->is_single_cpu(), "must be");
|
|
1676 |
if (is_volatile && dst->is_double_cpu()) {
|
|
1677 |
LIR_Opr tmp = new_pointer_register();
|
|
1678 |
__ add(src, offset, tmp);
|
|
1679 |
__ volatile_load_mem_reg(new LIR_Address(tmp, (intx)0, type), dst, NULL);
|
|
1680 |
} else if (type == T_FLOAT || type == T_DOUBLE) {
|
|
1681 |
// fld doesn't have indexed addressing mode
|
|
1682 |
LIR_Opr tmp = new_register(T_INT);
|
|
1683 |
__ add(src, offset, tmp);
|
|
1684 |
__ load(new LIR_Address(tmp, (intx)0, type), dst);
|
|
1685 |
} else {
|
|
1686 |
__ load(new LIR_Address(src, offset, type), dst);
|
|
1687 |
}
|
|
1688 |
#endif // AARCH64
|
|
1689 |
}
|
|
1690 |
|
|
1691 |
void LIRGenerator::put_Object_unsafe(LIR_Opr src, LIR_Opr offset, LIR_Opr data,
|
|
1692 |
BasicType type, bool is_volatile) {
|
|
1693 |
#ifdef AARCH64
|
|
1694 |
LIR_Address* addr = new LIR_Address(src, offset, type);
|
|
1695 |
if (type == T_ARRAY || type == T_OBJECT) {
|
|
1696 |
pre_barrier(LIR_OprFact::address(addr), LIR_OprFact::illegalOpr /* pre_val */,
|
|
1697 |
true /* do_load */, false /* patch */, NULL);
|
|
1698 |
__ move(data, addr);
|
|
1699 |
assert(src->is_register(), "must be register");
|
|
1700 |
post_barrier(LIR_OprFact::address(addr), data);
|
|
1701 |
} else {
|
|
1702 |
__ move(data, addr);
|
|
1703 |
}
|
|
1704 |
#else
|
|
1705 |
assert(offset->is_single_cpu(), "must be");
|
|
1706 |
if (is_volatile && data->is_double_cpu()) {
|
|
1707 |
LIR_Opr tmp = new_register(T_INT);
|
|
1708 |
__ add(src, offset, tmp);
|
|
1709 |
__ volatile_store_mem_reg(data, new LIR_Address(tmp, (intx)0, type), NULL);
|
|
1710 |
} else if (type == T_FLOAT || type == T_DOUBLE) {
|
|
1711 |
// fst doesn't have indexed addressing mode
|
|
1712 |
LIR_Opr tmp = new_register(T_INT);
|
|
1713 |
__ add(src, offset, tmp);
|
|
1714 |
__ move(data, new LIR_Address(tmp, (intx)0, type));
|
|
1715 |
} else {
|
|
1716 |
LIR_Address* addr = new LIR_Address(src, offset, type);
|
|
1717 |
bool is_obj = (type == T_ARRAY || type == T_OBJECT);
|
|
1718 |
#if INCLUDE_ALL_GCS
|
|
1719 |
if (is_obj) {
|
|
1720 |
// Do the pre-write barrier, if any.
|
|
1721 |
pre_barrier(LIR_OprFact::address(addr), LIR_OprFact::illegalOpr /* pre_val */,
|
|
1722 |
true /* do_load */, false /* patch */, NULL);
|
|
1723 |
}
|
|
1724 |
#endif // INCLUDE_ALL_GCS
|
|
1725 |
__ move(data, addr);
|
|
1726 |
if (is_obj) {
|
|
1727 |
assert(src->is_register(), "must be register");
|
|
1728 |
post_barrier(LIR_OprFact::address(addr), data);
|
|
1729 |
}
|
|
1730 |
}
|
|
1731 |
#endif // AARCH64
|
|
1732 |
}
|
|
1733 |
|
|
1734 |
void LIRGenerator::do_UnsafeGetAndSetObject(UnsafeGetAndSetObject* x) {
|
|
1735 |
BasicType type = x->basic_type();
|
|
1736 |
LIRItem src(x->object(), this);
|
|
1737 |
LIRItem off(x->offset(), this);
|
|
1738 |
LIRItem value(x->value(), this);
|
|
1739 |
|
|
1740 |
src.load_item();
|
|
1741 |
if (x->is_add()) {
|
|
1742 |
value.load_nonconstant();
|
|
1743 |
} else {
|
|
1744 |
value.load_item();
|
|
1745 |
}
|
|
1746 |
off.load_nonconstant();
|
|
1747 |
|
|
1748 |
LIR_Opr dst = rlock_result(x, type);
|
|
1749 |
LIR_Opr data = value.result();
|
|
1750 |
bool is_obj = (type == T_ARRAY || type == T_OBJECT);
|
|
1751 |
|
|
1752 |
assert (type == T_INT || type == T_LONG || (!x->is_add() && is_obj), "unexpected type");
|
|
1753 |
LIR_Opr addr_ptr = new_pointer_register();
|
|
1754 |
|
|
1755 |
__ add(src.result(), off.result(), addr_ptr);
|
|
1756 |
|
|
1757 |
LIR_Address* addr = new LIR_Address(addr_ptr, (intx)0, type);
|
|
1758 |
|
|
1759 |
if (x->is_add()) {
|
|
1760 |
LIR_Opr tmp = new_register(type);
|
|
1761 |
__ xadd(addr_ptr, data, dst, tmp);
|
|
1762 |
} else {
|
|
1763 |
LIR_Opr tmp = (UseCompressedOops && is_obj) ? new_pointer_register() : LIR_OprFact::illegalOpr;
|
|
1764 |
if (is_obj) {
|
|
1765 |
// Do the pre-write barrier, if any.
|
|
1766 |
pre_barrier(LIR_OprFact::address(addr), LIR_OprFact::illegalOpr /* pre_val */,
|
|
1767 |
true /* do_load */, false /* patch */, NULL);
|
|
1768 |
}
|
|
1769 |
__ xchg(addr_ptr, data, dst, tmp);
|
|
1770 |
if (is_obj) {
|
|
1771 |
// Seems to be a precise address
|
|
1772 |
post_barrier(LIR_OprFact::address(addr), data);
|
|
1773 |
}
|
|
1774 |
}
|
|
1775 |
}
|