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/*
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* Copyright (c) 2013, 2019, Oracle and/or its affiliates. All rights reserved.
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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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package org.graalvm.compiler.core.aarch64;
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import static jdk.vm.ci.aarch64.AArch64.sp;
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import static org.graalvm.compiler.lir.LIRValueUtil.asJavaConstant;
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import static org.graalvm.compiler.lir.LIRValueUtil.isIntConstant;
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import static org.graalvm.compiler.lir.LIRValueUtil.isJavaConstant;
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import java.util.function.Function;
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import org.graalvm.compiler.asm.aarch64.AArch64Address.AddressingMode;
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import org.graalvm.compiler.asm.aarch64.AArch64Assembler.ConditionFlag;
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import org.graalvm.compiler.asm.aarch64.AArch64MacroAssembler;
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import org.graalvm.compiler.core.common.LIRKind;
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import org.graalvm.compiler.core.common.calc.Condition;
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import org.graalvm.compiler.core.common.spi.LIRKindTool;
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import org.graalvm.compiler.debug.GraalError;
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import org.graalvm.compiler.lir.LIRFrameState;
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import org.graalvm.compiler.lir.LIRValueUtil;
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import org.graalvm.compiler.lir.LabelRef;
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import org.graalvm.compiler.lir.StandardOp;
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import org.graalvm.compiler.lir.SwitchStrategy;
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import org.graalvm.compiler.lir.Variable;
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import org.graalvm.compiler.lir.aarch64.AArch64AddressValue;
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import org.graalvm.compiler.lir.aarch64.AArch64ArithmeticOp;
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import org.graalvm.compiler.lir.aarch64.AArch64ArrayCompareToOp;
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import org.graalvm.compiler.lir.aarch64.AArch64ArrayEqualsOp;
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import org.graalvm.compiler.lir.aarch64.AArch64AtomicMove.AtomicReadAndAddLSEOp;
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import org.graalvm.compiler.lir.aarch64.AArch64AtomicMove.AtomicReadAndAddOp;
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import org.graalvm.compiler.lir.aarch64.AArch64AtomicMove.AtomicReadAndWriteOp;
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import org.graalvm.compiler.lir.aarch64.AArch64AtomicMove.CompareAndSwapOp;
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import org.graalvm.compiler.lir.aarch64.AArch64ByteSwapOp;
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import org.graalvm.compiler.lir.aarch64.AArch64Compare;
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import org.graalvm.compiler.lir.aarch64.AArch64ControlFlow;
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import org.graalvm.compiler.lir.aarch64.AArch64ControlFlow.BranchOp;
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import org.graalvm.compiler.lir.aarch64.AArch64ControlFlow.CompareBranchZeroOp;
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import org.graalvm.compiler.lir.aarch64.AArch64ControlFlow.CondMoveOp;
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import org.graalvm.compiler.lir.aarch64.AArch64ControlFlow.CondSetOp;
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import org.graalvm.compiler.lir.aarch64.AArch64ControlFlow.StrategySwitchOp;
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import org.graalvm.compiler.lir.aarch64.AArch64ControlFlow.TableSwitchOp;
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import org.graalvm.compiler.lir.aarch64.AArch64LIRFlagsVersioned;
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import org.graalvm.compiler.lir.aarch64.AArch64Move;
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import org.graalvm.compiler.lir.aarch64.AArch64Move.MembarOp;
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import org.graalvm.compiler.lir.aarch64.AArch64PauseOp;
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import org.graalvm.compiler.lir.aarch64.AArch64SpeculativeBarrier;
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import org.graalvm.compiler.lir.aarch64.AArch64ZeroMemoryOp;
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import org.graalvm.compiler.lir.gen.LIRGenerationResult;
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import org.graalvm.compiler.lir.gen.LIRGenerator;
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import org.graalvm.compiler.phases.util.Providers;
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import jdk.vm.ci.aarch64.AArch64;
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import jdk.vm.ci.aarch64.AArch64Kind;
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import jdk.vm.ci.code.CallingConvention;
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import jdk.vm.ci.code.RegisterValue;
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import jdk.vm.ci.meta.AllocatableValue;
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import jdk.vm.ci.meta.JavaConstant;
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import jdk.vm.ci.meta.JavaKind;
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import jdk.vm.ci.meta.PlatformKind;
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import jdk.vm.ci.meta.PrimitiveConstant;
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import jdk.vm.ci.meta.Value;
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import jdk.vm.ci.meta.ValueKind;
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public abstract class AArch64LIRGenerator extends LIRGenerator {
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public AArch64LIRGenerator(LIRKindTool lirKindTool, AArch64ArithmeticLIRGenerator arithmeticLIRGen, MoveFactory moveFactory, Providers providers, LIRGenerationResult lirGenRes) {
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super(lirKindTool, arithmeticLIRGen, moveFactory, providers, lirGenRes);
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}
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/**
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* Checks whether the supplied constant can be used without loading it into a register for store
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* operations, i.e., on the right hand side of a memory access.
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*
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* @param c The constant to check.
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* @return True if the constant can be used directly, false if the constant needs to be in a
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* register.
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*/
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protected static final boolean canStoreConstant(JavaConstant c) {
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// Our own code never calls this since we can't make a definite statement about whether or
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// not we can inline a constant without knowing what kind of operation we execute. Let's be
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// optimistic here and fix up mistakes later.
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return true;
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}
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/**
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* If val denotes the stackpointer, move it to another location. This is necessary since most
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* ops cannot handle the stackpointer as input or output.
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*/
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public AllocatableValue moveSp(AllocatableValue val) {
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if (val instanceof RegisterValue && ((RegisterValue) val).getRegister().equals(sp)) {
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assert val.getPlatformKind() == AArch64Kind.QWORD : "Stackpointer must be long";
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return emitMove(val);
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}
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return val;
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}
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/**
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* AArch64 cannot use anything smaller than a word in any instruction other than load and store.
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*/
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@Override
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public <K extends ValueKind<K>> K toRegisterKind(K kind) {
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switch ((AArch64Kind) kind.getPlatformKind()) {
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case BYTE:
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case WORD:
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return kind.changeType(AArch64Kind.DWORD);
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default:
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return kind;
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}
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}
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@Override
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public void emitNullCheck(Value address, LIRFrameState state) {
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append(new AArch64Move.NullCheckOp(asAddressValue(address), state));
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}
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@Override
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public Variable emitAddress(AllocatableValue stackslot) {
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Variable result = newVariable(LIRKind.value(target().arch.getWordKind()));
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append(new AArch64Move.StackLoadAddressOp(result, stackslot));
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return result;
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}
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public AArch64AddressValue asAddressValue(Value address) {
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if (address instanceof AArch64AddressValue) {
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return (AArch64AddressValue) address;
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} else {
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return new AArch64AddressValue(address.getValueKind(), asAllocatable(address), Value.ILLEGAL, 0, 1, AddressingMode.BASE_REGISTER_ONLY);
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}
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}
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@Override
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public Variable emitLogicCompareAndSwap(LIRKind accessKind, Value address, Value expectedValue, Value newValue, Value trueValue, Value falseValue) {
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Variable prevValue = newVariable(expectedValue.getValueKind());
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Variable scratch = newVariable(LIRKind.value(AArch64Kind.DWORD));
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append(new CompareAndSwapOp(prevValue, loadReg(expectedValue), loadReg(newValue), asAllocatable(address), scratch));
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assert trueValue.getValueKind().equals(falseValue.getValueKind());
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Variable result = newVariable(trueValue.getValueKind());
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append(new CondMoveOp(result, ConditionFlag.EQ, asAllocatable(trueValue), asAllocatable(falseValue)));
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return result;
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}
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@Override
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public Variable emitValueCompareAndSwap(LIRKind accessKind, Value address, Value expectedValue, Value newValue) {
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Variable result = newVariable(newValue.getValueKind());
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Variable scratch = newVariable(LIRKind.value(AArch64Kind.WORD));
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append(new CompareAndSwapOp(result, loadReg(expectedValue), loadReg(newValue), asAllocatable(address), scratch));
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return result;
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}
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@Override
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public Value emitAtomicReadAndWrite(Value address, ValueKind<?> kind, Value newValue) {
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Variable result = newVariable(kind);
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Variable scratch = newVariable(kind);
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append(new AtomicReadAndWriteOp((AArch64Kind) kind.getPlatformKind(), asAllocatable(result), asAllocatable(address), asAllocatable(newValue), asAllocatable(scratch)));
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return result;
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}
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@Override
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public Value emitAtomicReadAndAdd(Value address, ValueKind<?> kind, Value delta) {
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Variable result = newVariable(kind);
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if (AArch64LIRFlagsVersioned.useLSE(target().arch)) {
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append(new AtomicReadAndAddLSEOp((AArch64Kind) kind.getPlatformKind(), asAllocatable(result), asAllocatable(address), asAllocatable(delta)));
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} else {
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append(new AtomicReadAndAddOp((AArch64Kind) kind.getPlatformKind(), asAllocatable(result), asAllocatable(address), delta));
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}
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return result;
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}
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@Override
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public void emitMembar(int barriers) {
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int necessaryBarriers = target().arch.requiredBarriers(barriers);
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if (target().isMP && necessaryBarriers != 0) {
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append(new MembarOp(necessaryBarriers));
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}
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}
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@Override
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public void emitJump(LabelRef label) {
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assert label != null;
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append(new StandardOp.JumpOp(label));
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}
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@Override
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public void emitOverflowCheckBranch(LabelRef overflow, LabelRef noOverflow, LIRKind cmpKind, double overflowProbability) {
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append(new AArch64ControlFlow.BranchOp(ConditionFlag.VS, overflow, noOverflow, overflowProbability));
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}
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/**
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* Branches to label if (left & right) == 0. If negated is true branchse on non-zero instead.
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*
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* @param left Integer kind. Non null.
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* @param right Integer kind. Non null.
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* @param trueDestination destination if left & right == 0. Non null.
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* @param falseDestination destination if left & right != 0. Non null
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* @param trueSuccessorProbability hoistoric probability that comparison is true
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*/
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@Override
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public void emitIntegerTestBranch(Value left, Value right, LabelRef trueDestination, LabelRef falseDestination, double trueSuccessorProbability) {
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assert ((AArch64Kind) left.getPlatformKind()).isInteger() && left.getPlatformKind() == right.getPlatformKind();
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((AArch64ArithmeticLIRGenerator) getArithmetic()).emitBinary(LIRKind.combine(left, right), AArch64ArithmeticOp.ANDS, true, left, right);
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append(new AArch64ControlFlow.BranchOp(ConditionFlag.EQ, trueDestination, falseDestination, trueSuccessorProbability));
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}
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/**
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* Conditionally move trueValue into new variable if cond + unorderedIsTrue is true, else
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* falseValue.
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*
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* @param left Arbitrary value. Has to have same type as right. Non null.
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* @param right Arbitrary value. Has to have same type as left. Non null.
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* @param cond condition that decides whether to move trueValue or falseValue into result. Non
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* null.
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* @param unorderedIsTrue defines whether floating-point comparisons consider unordered true or
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* not. Ignored for integer comparisons.
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* @param trueValue arbitrary value same type as falseValue. Non null.
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* @param falseValue arbitrary value same type as trueValue. Non null.
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* @return value containing trueValue if cond + unorderedIsTrue is true, else falseValue. Non
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* null.
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*/
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@Override
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public Variable emitConditionalMove(PlatformKind cmpKind, Value left, final Value right, Condition cond, boolean unorderedIsTrue, Value trueValue, Value falseValue) {
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AArch64ArithmeticLIRGenerator arithLir = ((AArch64ArithmeticLIRGenerator) arithmeticLIRGen);
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Value actualRight = right;
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if (isJavaConstant(actualRight) && arithLir.mustReplaceNullWithNullRegister((asJavaConstant(actualRight)))) {
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actualRight = arithLir.getNullRegisterValue();
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}
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boolean mirrored = emitCompare(cmpKind, left, actualRight, cond, unorderedIsTrue);
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Condition finalCondition = mirrored ? cond.mirror() : cond;
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boolean finalUnorderedIsTrue = mirrored ? !unorderedIsTrue : unorderedIsTrue;
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ConditionFlag cmpCondition = toConditionFlag(((AArch64Kind) cmpKind).isInteger(), finalCondition, finalUnorderedIsTrue);
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Variable result = newVariable(trueValue.getValueKind());
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if (isIntConstant(trueValue, 1) && isIntConstant(falseValue, 0)) {
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append(new CondSetOp(result, cmpCondition));
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} else if (isIntConstant(trueValue, 0) && isIntConstant(falseValue, 1)) {
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append(new CondSetOp(result, cmpCondition.negate()));
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} else {
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append(new CondMoveOp(result, cmpCondition, loadReg(trueValue), loadReg(falseValue)));
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}
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return result;
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}
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@Override
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public void emitCompareBranch(PlatformKind cmpKind, Value left, final Value right, Condition cond, boolean unorderedIsTrue, LabelRef trueDestination, LabelRef falseDestination,
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double trueDestinationProbability) {
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Value actualRight = right;
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if (cond == Condition.EQ) {
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// emit cbz instruction for IsNullNode.
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assert !LIRValueUtil.isNullConstant(left) : "emitNullCheckBranch()'s null input should be in right.";
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AArch64ArithmeticLIRGenerator arithLir = ((AArch64ArithmeticLIRGenerator) arithmeticLIRGen);
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if (LIRValueUtil.isNullConstant(actualRight)) {
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JavaConstant rightConstant = asJavaConstant(actualRight);
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if (arithLir.mustReplaceNullWithNullRegister(rightConstant)) {
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actualRight = arithLir.getNullRegisterValue();
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} else {
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append(new CompareBranchZeroOp(asAllocatable(left), trueDestination, falseDestination,
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trueDestinationProbability));
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return;
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}
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}
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// emit cbz instruction for IntegerEquals when any of the inputs is zero.
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AArch64Kind kind = (AArch64Kind) cmpKind;
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if (kind.isInteger()) {
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if (isIntConstant(left, 0)) {
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append(new CompareBranchZeroOp(asAllocatable(actualRight), trueDestination, falseDestination, trueDestinationProbability));
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return;
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} else if (isIntConstant(actualRight, 0)) {
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append(new CompareBranchZeroOp(asAllocatable(left), trueDestination, falseDestination, trueDestinationProbability));
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return;
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}
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}
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}
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boolean mirrored = emitCompare(cmpKind, left, actualRight, cond, unorderedIsTrue);
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Condition finalCondition = mirrored ? cond.mirror() : cond;
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boolean finalUnorderedIsTrue = mirrored ? !unorderedIsTrue : unorderedIsTrue;
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ConditionFlag cmpCondition = toConditionFlag(((AArch64Kind) cmpKind).isInteger(), finalCondition, finalUnorderedIsTrue);
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append(new BranchOp(cmpCondition, trueDestination, falseDestination, trueDestinationProbability));
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}
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private static ConditionFlag toConditionFlag(boolean isInt, Condition cond, boolean unorderedIsTrue) {
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return isInt ? toIntConditionFlag(cond) : toFloatConditionFlag(cond, unorderedIsTrue);
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}
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/**
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* Takes a Condition and unorderedIsTrue flag and returns the correct Aarch64 specific
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* ConditionFlag. Note: This is only correct if the emitCompare code for floats has correctly
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* handled the case of 'EQ && unorderedIsTrue', respectively 'NE && !unorderedIsTrue'!
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*/
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private static ConditionFlag toFloatConditionFlag(Condition cond, boolean unorderedIsTrue) {
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switch (cond) {
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case LT:
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return unorderedIsTrue ? ConditionFlag.LT : ConditionFlag.LO;
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case LE:
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return unorderedIsTrue ? ConditionFlag.LE : ConditionFlag.LS;
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case GE:
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return unorderedIsTrue ? ConditionFlag.PL : ConditionFlag.GE;
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case GT:
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return unorderedIsTrue ? ConditionFlag.HI : ConditionFlag.GT;
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case EQ:
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return ConditionFlag.EQ;
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case NE:
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return ConditionFlag.NE;
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default:
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327 |
throw GraalError.shouldNotReachHere();
|
|
328 |
}
|
|
329 |
}
|
|
330 |
|
|
331 |
/**
|
|
332 |
* Takes a Condition and returns the correct Aarch64 specific ConditionFlag.
|
|
333 |
*/
|
|
334 |
private static ConditionFlag toIntConditionFlag(Condition cond) {
|
|
335 |
switch (cond) {
|
|
336 |
case EQ:
|
|
337 |
return ConditionFlag.EQ;
|
|
338 |
case NE:
|
|
339 |
return ConditionFlag.NE;
|
|
340 |
case LT:
|
|
341 |
return ConditionFlag.LT;
|
|
342 |
case LE:
|
|
343 |
return ConditionFlag.LE;
|
|
344 |
case GT:
|
|
345 |
return ConditionFlag.GT;
|
|
346 |
case GE:
|
|
347 |
return ConditionFlag.GE;
|
|
348 |
case AE:
|
|
349 |
return ConditionFlag.HS;
|
|
350 |
case BE:
|
|
351 |
return ConditionFlag.LS;
|
|
352 |
case AT:
|
|
353 |
return ConditionFlag.HI;
|
|
354 |
case BT:
|
|
355 |
return ConditionFlag.LO;
|
|
356 |
default:
|
|
357 |
throw GraalError.shouldNotReachHere();
|
|
358 |
}
|
|
359 |
}
|
|
360 |
|
|
361 |
/**
|
|
362 |
* This method emits the compare instruction, and may reorder the operands. It returns true if
|
|
363 |
* it did so.
|
|
364 |
*
|
|
365 |
* @param a the left operand of the comparison. Has to have same type as b. Non null.
|
|
366 |
* @param b the right operand of the comparison. Has to have same type as a. Non null.
|
|
367 |
* @return true if mirrored (i.e. "b cmp a" instead of "a cmp b" was done).
|
|
368 |
*/
|
|
369 |
protected boolean emitCompare(PlatformKind cmpKind, Value a, Value b, Condition condition, boolean unorderedIsTrue) {
|
|
370 |
Value left;
|
|
371 |
Value right;
|
|
372 |
boolean mirrored;
|
|
373 |
AArch64Kind kind = (AArch64Kind) cmpKind;
|
|
374 |
if (kind.isInteger()) {
|
46344
|
375 |
Value aExt = a;
|
|
376 |
Value bExt = b;
|
|
377 |
|
|
378 |
int compareBytes = cmpKind.getSizeInBytes();
|
|
379 |
// AArch64 compares 32 or 64 bits: sign extend a and b as required.
|
|
380 |
if (compareBytes < a.getPlatformKind().getSizeInBytes()) {
|
|
381 |
aExt = arithmeticLIRGen.emitSignExtend(a, compareBytes * 8, 64);
|
|
382 |
}
|
|
383 |
if (compareBytes < b.getPlatformKind().getSizeInBytes()) {
|
|
384 |
bExt = arithmeticLIRGen.emitSignExtend(b, compareBytes * 8, 64);
|
|
385 |
}
|
|
386 |
|
|
387 |
if (LIRValueUtil.isVariable(bExt)) {
|
|
388 |
left = load(bExt);
|
|
389 |
right = loadNonConst(aExt);
|
43972
|
390 |
mirrored = true;
|
|
391 |
} else {
|
46344
|
392 |
left = load(aExt);
|
|
393 |
right = loadNonConst(bExt);
|
43972
|
394 |
mirrored = false;
|
|
395 |
}
|
|
396 |
append(new AArch64Compare.CompareOp(left, loadNonCompareConst(right)));
|
|
397 |
} else if (kind.isSIMD()) {
|
|
398 |
if (AArch64Compare.FloatCompareOp.isFloatCmpConstant(a, condition, unorderedIsTrue)) {
|
|
399 |
left = load(b);
|
|
400 |
right = a;
|
|
401 |
mirrored = true;
|
|
402 |
} else if (AArch64Compare.FloatCompareOp.isFloatCmpConstant(b, condition, unorderedIsTrue)) {
|
|
403 |
left = load(a);
|
|
404 |
right = b;
|
|
405 |
mirrored = false;
|
|
406 |
} else {
|
|
407 |
left = load(a);
|
|
408 |
right = loadReg(b);
|
|
409 |
mirrored = false;
|
|
410 |
}
|
|
411 |
append(new AArch64Compare.FloatCompareOp(left, asAllocatable(right), condition, unorderedIsTrue));
|
|
412 |
} else {
|
|
413 |
throw GraalError.shouldNotReachHere();
|
|
414 |
}
|
|
415 |
return mirrored;
|
|
416 |
}
|
|
417 |
|
|
418 |
/**
|
|
419 |
* If value is a constant that cannot be used directly with a gpCompare instruction load it into
|
|
420 |
* a register and return the register, otherwise return constant value unchanged.
|
|
421 |
*/
|
|
422 |
protected Value loadNonCompareConst(Value value) {
|
|
423 |
if (!isCompareConstant(value)) {
|
|
424 |
return loadReg(value);
|
|
425 |
}
|
|
426 |
return value;
|
|
427 |
}
|
|
428 |
|
|
429 |
/**
|
|
430 |
* Checks whether value can be used directly with a gpCompare instruction. This is <b>not</b>
|
|
431 |
* the same as {@link AArch64ArithmeticLIRGenerator#isArithmeticConstant(JavaConstant)}, because
|
|
432 |
* 0.0 is a valid compare constant for floats, while there are no arithmetic constants for
|
|
433 |
* floats.
|
|
434 |
*
|
|
435 |
* @param value any type. Non null.
|
|
436 |
* @return true if value can be used directly in comparison instruction, false otherwise.
|
|
437 |
*/
|
|
438 |
public boolean isCompareConstant(Value value) {
|
|
439 |
if (isJavaConstant(value)) {
|
|
440 |
JavaConstant constant = asJavaConstant(value);
|
|
441 |
if (constant instanceof PrimitiveConstant) {
|
|
442 |
final long longValue = constant.asLong();
|
|
443 |
long maskedValue;
|
|
444 |
switch (constant.getJavaKind()) {
|
|
445 |
case Boolean:
|
|
446 |
case Byte:
|
|
447 |
maskedValue = longValue & 0xFF;
|
|
448 |
break;
|
|
449 |
case Char:
|
|
450 |
case Short:
|
|
451 |
maskedValue = longValue & 0xFFFF;
|
|
452 |
break;
|
|
453 |
case Int:
|
|
454 |
maskedValue = longValue & 0xFFFF_FFFF;
|
|
455 |
break;
|
|
456 |
case Long:
|
|
457 |
maskedValue = longValue;
|
|
458 |
break;
|
|
459 |
default:
|
|
460 |
throw GraalError.shouldNotReachHere();
|
|
461 |
}
|
|
462 |
return AArch64MacroAssembler.isArithmeticImmediate(maskedValue);
|
|
463 |
} else {
|
|
464 |
return constant.isDefaultForKind();
|
|
465 |
}
|
|
466 |
}
|
|
467 |
return false;
|
|
468 |
}
|
|
469 |
|
|
470 |
/**
|
|
471 |
* Moves trueValue into result if (left & right) == 0, else falseValue.
|
|
472 |
*
|
|
473 |
* @param left Integer kind. Non null.
|
|
474 |
* @param right Integer kind. Non null.
|
|
475 |
* @param trueValue Integer kind. Non null.
|
|
476 |
* @param falseValue Integer kind. Non null.
|
|
477 |
* @return virtual register containing trueValue if (left & right) == 0, else falseValue.
|
|
478 |
*/
|
|
479 |
@Override
|
|
480 |
public Variable emitIntegerTestMove(Value left, Value right, Value trueValue, Value falseValue) {
|
|
481 |
assert ((AArch64Kind) left.getPlatformKind()).isInteger() && ((AArch64Kind) right.getPlatformKind()).isInteger();
|
|
482 |
assert ((AArch64Kind) trueValue.getPlatformKind()).isInteger() && ((AArch64Kind) falseValue.getPlatformKind()).isInteger();
|
46344
|
483 |
((AArch64ArithmeticLIRGenerator) getArithmetic()).emitBinary(left.getValueKind(), AArch64ArithmeticOp.ANDS, true, left, right);
|
43972
|
484 |
Variable result = newVariable(trueValue.getValueKind());
|
52910
|
485 |
|
|
486 |
if (isIntConstant(trueValue, 1) && isIntConstant(falseValue, 0)) {
|
|
487 |
append(new CondSetOp(result, ConditionFlag.EQ));
|
|
488 |
} else if (isIntConstant(trueValue, 0) && isIntConstant(falseValue, 1)) {
|
|
489 |
append(new CondSetOp(result, ConditionFlag.NE));
|
|
490 |
} else {
|
|
491 |
append(new CondMoveOp(result, ConditionFlag.EQ, load(trueValue), load(falseValue)));
|
|
492 |
}
|
43972
|
493 |
return result;
|
|
494 |
}
|
|
495 |
|
|
496 |
@Override
|
|
497 |
public void emitStrategySwitch(SwitchStrategy strategy, Variable key, LabelRef[] keyTargets, LabelRef defaultTarget) {
|
|
498 |
append(createStrategySwitchOp(strategy, keyTargets, defaultTarget, key, newVariable(key.getValueKind()), AArch64LIRGenerator::toIntConditionFlag));
|
|
499 |
}
|
|
500 |
|
|
501 |
protected StrategySwitchOp createStrategySwitchOp(SwitchStrategy strategy, LabelRef[] keyTargets, LabelRef defaultTarget, Variable key, AllocatableValue scratchValue,
|
|
502 |
Function<Condition, ConditionFlag> converter) {
|
|
503 |
return new StrategySwitchOp(strategy, keyTargets, defaultTarget, key, scratchValue, converter);
|
|
504 |
}
|
|
505 |
|
|
506 |
@Override
|
|
507 |
protected void emitTableSwitch(int lowKey, LabelRef defaultTarget, LabelRef[] targets, Value key) {
|
46344
|
508 |
append(new TableSwitchOp(lowKey, defaultTarget, targets, key, newVariable(LIRKind.value(target().arch.getWordKind())), newVariable(key.getValueKind())));
|
43972
|
509 |
}
|
|
510 |
|
|
511 |
@Override
|
46344
|
512 |
public Variable emitByteSwap(Value input) {
|
|
513 |
Variable result = newVariable(LIRKind.combine(input));
|
|
514 |
append(new AArch64ByteSwapOp(result, input));
|
|
515 |
return result;
|
43972
|
516 |
}
|
|
517 |
|
|
518 |
@Override
|
49873
|
519 |
public Variable emitArrayCompareTo(JavaKind kind1, JavaKind kind2, Value array1, Value array2, Value length1, Value length2) {
|
|
520 |
LIRKind resultKind = LIRKind.value(AArch64Kind.DWORD);
|
|
521 |
// DMS TODO: check calling conversion and registers used
|
|
522 |
RegisterValue res = AArch64.r0.asValue(resultKind);
|
|
523 |
RegisterValue cnt1 = AArch64.r1.asValue(length1.getValueKind());
|
|
524 |
RegisterValue cnt2 = AArch64.r2.asValue(length2.getValueKind());
|
|
525 |
emitMove(cnt1, length1);
|
|
526 |
emitMove(cnt2, length2);
|
|
527 |
append(new AArch64ArrayCompareToOp(this, kind1, kind2, res, array1, array2, cnt1, cnt2));
|
|
528 |
Variable result = newVariable(resultKind);
|
|
529 |
emitMove(result, res);
|
|
530 |
return result;
|
|
531 |
}
|
|
532 |
|
|
533 |
@Override
|
58299
|
534 |
public Variable emitArrayEquals(JavaKind kind, Value array1, Value array2, Value length, boolean directPointers) {
|
46344
|
535 |
Variable result = newVariable(LIRKind.value(AArch64Kind.DWORD));
|
52578
|
536 |
append(new AArch64ArrayEqualsOp(this, kind, result, array1, array2, asAllocatable(length), directPointers));
|
46344
|
537 |
return result;
|
43972
|
538 |
}
|
|
539 |
|
|
540 |
@Override
|
|
541 |
protected JavaConstant zapValueForKind(PlatformKind kind) {
|
|
542 |
long dead = 0xDEADDEADDEADDEADL;
|
|
543 |
switch ((AArch64Kind) kind) {
|
|
544 |
case BYTE:
|
|
545 |
return JavaConstant.forByte((byte) dead);
|
|
546 |
case WORD:
|
|
547 |
return JavaConstant.forShort((short) dead);
|
|
548 |
case DWORD:
|
|
549 |
return JavaConstant.forInt((int) dead);
|
|
550 |
case QWORD:
|
|
551 |
return JavaConstant.forLong(dead);
|
|
552 |
case SINGLE:
|
|
553 |
return JavaConstant.forFloat(Float.intBitsToFloat((int) dead));
|
|
554 |
case DOUBLE:
|
|
555 |
return JavaConstant.forDouble(Double.longBitsToDouble(dead));
|
|
556 |
default:
|
|
557 |
throw GraalError.shouldNotReachHere();
|
|
558 |
}
|
|
559 |
}
|
|
560 |
|
|
561 |
/**
|
|
562 |
* Loads value into virtual register. Contrary to {@link #load(Value)} this handles
|
|
563 |
* RegisterValues (i.e. values corresponding to fixed physical registers) correctly, by not
|
|
564 |
* creating an unnecessary move into a virtual register.
|
|
565 |
*
|
|
566 |
* This avoids generating the following code: mov x0, x19 # x19 is fixed thread register ldr x0,
|
|
567 |
* [x0] instead of: ldr x0, [x19].
|
|
568 |
*/
|
|
569 |
protected AllocatableValue loadReg(Value val) {
|
|
570 |
if (!(val instanceof Variable || val instanceof RegisterValue)) {
|
|
571 |
return emitMove(val);
|
|
572 |
}
|
|
573 |
return (AllocatableValue) val;
|
|
574 |
}
|
|
575 |
|
|
576 |
@Override
|
|
577 |
public void emitPause() {
|
|
578 |
append(new AArch64PauseOp());
|
|
579 |
}
|
46344
|
580 |
|
|
581 |
public abstract void emitCCall(long address, CallingConvention nativeCallingConvention, Value[] args);
|
52578
|
582 |
|
|
583 |
@Override
|
|
584 |
public void emitSpeculationFence() {
|
|
585 |
append(new AArch64SpeculativeBarrier());
|
|
586 |
}
|
58299
|
587 |
|
|
588 |
@Override
|
58533
|
589 |
public void emitZeroMemory(Value address, Value length, boolean isAligned) {
|
|
590 |
emitZeroMemory(address, length, isAligned, false, -1);
|
|
591 |
}
|
|
592 |
|
|
593 |
protected final void emitZeroMemory(Value address, Value length, boolean isAligned, boolean useDcZva, int zvaLength) {
|
|
594 |
RegisterValue regAddress = AArch64.r0.asValue(address.getValueKind());
|
|
595 |
RegisterValue regLength = AArch64.r1.asValue(length.getValueKind());
|
|
596 |
emitMove(regAddress, address);
|
|
597 |
emitMove(regLength, length);
|
|
598 |
append(new AArch64ZeroMemoryOp(regAddress, regLength, isAligned, useDcZva, zvaLength));
|
58299
|
599 |
}
|
43972
|
600 |
}
|