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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.lir.asm;
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import static jdk.vm.ci.code.ValueUtil.asStackSlot;
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import static jdk.vm.ci.code.ValueUtil.isStackSlot;
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import static org.graalvm.compiler.lir.LIRValueUtil.asJavaConstant;
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import static org.graalvm.compiler.lir.LIRValueUtil.isJavaConstant;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.List;
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import java.util.function.Consumer;
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import jdk.internal.vm.compiler.collections.EconomicMap;
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import jdk.internal.vm.compiler.collections.Equivalence;
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import org.graalvm.compiler.asm.AbstractAddress;
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import org.graalvm.compiler.asm.Assembler;
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import org.graalvm.compiler.asm.Label;
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import org.graalvm.compiler.code.CompilationResult;
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import org.graalvm.compiler.code.CompilationResult.CodeAnnotation;
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import org.graalvm.compiler.code.CompilationResult.JumpTable;
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import org.graalvm.compiler.code.DataSection.Data;
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import org.graalvm.compiler.code.DataSection.RawData;
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import org.graalvm.compiler.core.common.NumUtil;
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import org.graalvm.compiler.core.common.cfg.AbstractBlockBase;
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import org.graalvm.compiler.core.common.spi.ForeignCallsProvider;
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import org.graalvm.compiler.core.common.type.DataPointerConstant;
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import org.graalvm.compiler.debug.DebugContext;
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import org.graalvm.compiler.debug.GraalError;
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import org.graalvm.compiler.graph.NodeSourcePosition;
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import org.graalvm.compiler.lir.LIR;
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import org.graalvm.compiler.lir.LIRFrameState;
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import org.graalvm.compiler.lir.LIRInstruction;
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import org.graalvm.compiler.lir.LIRInstructionVerifier;
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import org.graalvm.compiler.lir.LabelRef;
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import org.graalvm.compiler.lir.StandardOp.LabelHoldingOp;
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import org.graalvm.compiler.lir.framemap.FrameMap;
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import org.graalvm.compiler.options.Option;
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import org.graalvm.compiler.options.OptionKey;
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import org.graalvm.compiler.options.OptionType;
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import org.graalvm.compiler.options.OptionValues;
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import org.graalvm.compiler.serviceprovider.GraalServices;
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import jdk.vm.ci.code.BailoutException;
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import jdk.vm.ci.code.CodeCacheProvider;
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import jdk.vm.ci.code.DebugInfo;
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import jdk.vm.ci.code.Register;
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import jdk.vm.ci.code.StackSlot;
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import jdk.vm.ci.code.TargetDescription;
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import jdk.vm.ci.code.site.ConstantReference;
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import jdk.vm.ci.code.site.DataSectionReference;
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import jdk.vm.ci.code.site.InfopointReason;
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import jdk.vm.ci.code.site.Mark;
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import jdk.vm.ci.meta.Constant;
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import jdk.vm.ci.meta.InvokeTarget;
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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.VMConstant;
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import jdk.vm.ci.meta.Value;
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/**
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* Fills in a {@link CompilationResult} as its code is being assembled.
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*
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* @see CompilationResultBuilderFactory
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*/
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public class CompilationResultBuilder {
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private static final List<LIRInstructionVerifier> LIR_INSTRUCTION_VERIFIERS = new ArrayList<>();
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static {
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for (LIRInstructionVerifier verifier : GraalServices.load(LIRInstructionVerifier.class)) {
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if (verifier.isEnabled()) {
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LIR_INSTRUCTION_VERIFIERS.add(verifier);
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}
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}
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}
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public static class Options {
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@Option(help = "Include the LIR as comments with the final assembly.", type = OptionType.Debug) //
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public static final OptionKey<Boolean> PrintLIRWithAssembly = new OptionKey<>(false);
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}
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private static class ExceptionInfo {
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public final int codeOffset;
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public final LabelRef exceptionEdge;
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ExceptionInfo(int pcOffset, LabelRef exceptionEdge) {
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this.codeOffset = pcOffset;
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this.exceptionEdge = exceptionEdge;
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}
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}
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/**
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* Wrapper for a code annotation that was produced by the {@link Assembler}.
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*/
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public static final class AssemblerAnnotation extends CodeAnnotation {
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public final Assembler.CodeAnnotation assemblerCodeAnnotation;
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public AssemblerAnnotation(Assembler.CodeAnnotation assemblerCodeAnnotation) {
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super(assemblerCodeAnnotation.instructionPosition);
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this.assemblerCodeAnnotation = assemblerCodeAnnotation;
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}
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@Override
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public boolean equals(Object obj) {
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return this == obj;
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}
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@Override
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public String toString() {
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return assemblerCodeAnnotation.toString();
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}
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}
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public final Assembler asm;
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public final DataBuilder dataBuilder;
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public final CompilationResult compilationResult;
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public final Register uncompressedNullRegister;
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public final TargetDescription target;
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public final CodeCacheProvider codeCache;
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public final ForeignCallsProvider foreignCalls;
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public final FrameMap frameMap;
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/**
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* The LIR for which code is being generated.
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*/
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protected LIR lir;
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/**
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* The index of the block currently being emitted.
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*/
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protected int currentBlockIndex;
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/**
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* The object that emits code for managing a method's frame.
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*/
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public final FrameContext frameContext;
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private List<ExceptionInfo> exceptionInfoList;
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private final OptionValues options;
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private final DebugContext debug;
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private final EconomicMap<Constant, Data> dataCache;
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private Consumer<LIRInstruction> beforeOp;
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private Consumer<LIRInstruction> afterOp;
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/**
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* These position maps are used for estimating offsets of forward branches. Used for
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* architectures where certain branch instructions have limited displacement such as ARM tbz or
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* SPARC cbcond.
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*/
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private EconomicMap<Label, Integer> labelBindLirPositions;
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private EconomicMap<LIRInstruction, Integer> lirPositions;
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/**
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* This flag is for setting the
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* {@link CompilationResultBuilder#labelWithinRange(LIRInstruction, Label, int)} into a
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* conservative mode and always answering false.
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*/
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private boolean conservativeLabelOffsets = false;
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public final boolean mustReplaceWithUncompressedNullRegister(JavaConstant nullConstant) {
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return !uncompressedNullRegister.equals(Register.None) && JavaConstant.NULL_POINTER.equals(nullConstant);
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}
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public CompilationResultBuilder(CodeCacheProvider codeCache,
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ForeignCallsProvider foreignCalls,
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FrameMap frameMap,
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Assembler asm,
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DataBuilder dataBuilder,
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FrameContext frameContext,
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OptionValues options,
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DebugContext debug,
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CompilationResult compilationResult,
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Register uncompressedNullRegister) {
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this(codeCache,
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foreignCalls,
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frameMap,
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asm,
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dataBuilder,
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frameContext,
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options,
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debug,
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compilationResult,
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uncompressedNullRegister,
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EconomicMap.create(Equivalence.DEFAULT));
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}
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public CompilationResultBuilder(CodeCacheProvider codeCache,
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ForeignCallsProvider foreignCalls,
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FrameMap frameMap,
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Assembler asm,
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DataBuilder dataBuilder,
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FrameContext frameContext,
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OptionValues options,
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DebugContext debug,
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CompilationResult compilationResult,
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Register uncompressedNullRegister,
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EconomicMap<Constant, Data> dataCache) {
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this.target = codeCache.getTarget();
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this.codeCache = codeCache;
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this.foreignCalls = foreignCalls;
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this.frameMap = frameMap;
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this.asm = asm;
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this.dataBuilder = dataBuilder;
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this.compilationResult = compilationResult;
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this.uncompressedNullRegister = uncompressedNullRegister;
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this.frameContext = frameContext;
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this.options = options;
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this.debug = debug;
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assert frameContext != null;
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this.dataCache = dataCache;
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}
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public void setTotalFrameSize(int frameSize) {
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compilationResult.setTotalFrameSize(frameSize);
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}
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public void setMaxInterpreterFrameSize(int maxInterpreterFrameSize) {
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compilationResult.setMaxInterpreterFrameSize(maxInterpreterFrameSize);
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}
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public Mark recordMark(Object id) {
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return compilationResult.recordMark(asm.position(), id);
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}
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public void blockComment(String s) {
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compilationResult.addAnnotation(new CompilationResult.CodeComment(asm.position(), s));
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}
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/**
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* Sets the {@linkplain CompilationResult#setTargetCode(byte[], int) code} and
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* {@linkplain CompilationResult#recordExceptionHandler(int, int) exception handler} fields of
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* the compilation result and then {@linkplain #closeCompilationResult() closes} it.
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*/
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public void finish() {
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int position = asm.position();
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compilationResult.setTargetCode(asm.close(false), position);
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// Record exception handlers if they exist
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if (exceptionInfoList != null) {
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for (ExceptionInfo ei : exceptionInfoList) {
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int codeOffset = ei.codeOffset;
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compilationResult.recordExceptionHandler(codeOffset, ei.exceptionEdge.label().position());
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}
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}
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closeCompilationResult();
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}
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/**
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* Calls {@link CompilationResult#close()} on {@link #compilationResult}.
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*/
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protected void closeCompilationResult() {
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compilationResult.close();
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}
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public void recordExceptionHandlers(int pcOffset, LIRFrameState info) {
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if (info != null) {
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if (info.exceptionEdge != null) {
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if (exceptionInfoList == null) {
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exceptionInfoList = new ArrayList<>(4);
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}
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exceptionInfoList.add(new ExceptionInfo(pcOffset, info.exceptionEdge));
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}
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}
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}
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public void recordImplicitException(int pcOffset, LIRFrameState info) {
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compilationResult.recordInfopoint(pcOffset, info.debugInfo(), InfopointReason.IMPLICIT_EXCEPTION);
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assert info.exceptionEdge == null;
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}
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public void recordDirectCall(int posBefore, int posAfter, InvokeTarget callTarget, LIRFrameState info) {
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DebugInfo debugInfo = info != null ? info.debugInfo() : null;
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compilationResult.recordCall(posBefore, posAfter - posBefore, callTarget, debugInfo, true);
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}
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public void recordIndirectCall(int posBefore, int posAfter, InvokeTarget callTarget, LIRFrameState info) {
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DebugInfo debugInfo = info != null ? info.debugInfo() : null;
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compilationResult.recordCall(posBefore, posAfter - posBefore, callTarget, debugInfo, false);
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}
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public void recordInfopoint(int pos, LIRFrameState info, InfopointReason reason) {
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// infopoints always need debug info
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DebugInfo debugInfo = info.debugInfo();
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recordInfopoint(pos, debugInfo, reason);
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}
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public void recordInfopoint(int pos, DebugInfo debugInfo, InfopointReason reason) {
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compilationResult.recordInfopoint(pos, debugInfo, reason);
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}
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public void recordSourceMapping(int pcOffset, int endPcOffset, NodeSourcePosition sourcePosition) {
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compilationResult.recordSourceMapping(pcOffset, endPcOffset, sourcePosition);
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}
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public void recordInlineDataInCode(Constant data) {
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assert data != null;
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int pos = asm.position();
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debug.log("Inline data in code: pos = %d, data = %s", pos, data);
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if (data instanceof VMConstant) {
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compilationResult.recordDataPatch(pos, new ConstantReference((VMConstant) data));
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}
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}
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public void recordInlineDataInCodeWithNote(Constant data, Object note) {
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assert data != null;
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int pos = asm.position();
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debug.log("Inline data in code: pos = %d, data = %s, note = %s", pos, data, note);
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if (data instanceof VMConstant) {
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compilationResult.recordDataPatchWithNote(pos, new ConstantReference((VMConstant) data), note);
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}
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}
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public AbstractAddress recordDataSectionReference(Data data) {
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assert data != null;
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DataSectionReference reference = compilationResult.getDataSection().insertData(data);
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int instructionStart = asm.position();
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compilationResult.recordDataPatch(instructionStart, reference);
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return asm.getPlaceholder(instructionStart);
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}
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public AbstractAddress recordDataReferenceInCode(DataPointerConstant constant) {
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return recordDataReferenceInCode(constant, constant.getAlignment());
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}
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public AbstractAddress recordDataReferenceInCode(Constant constant, int alignment) {
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assert constant != null;
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debug.log("Constant reference in code: pos = %d, data = %s", asm.position(), constant);
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Data data = createDataItem(constant);
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data.updateAlignment(alignment);
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return recordDataSectionReference(data);
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}
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public AbstractAddress recordDataReferenceInCode(Data data, int alignment) {
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assert data != null;
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data.updateAlignment(alignment);
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return recordDataSectionReference(data);
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}
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public Data createDataItem(Constant constant) {
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Data data = dataCache.get(constant);
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if (data == null) {
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data = dataBuilder.createDataItem(constant);
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dataCache.put(constant, data);
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}
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return data;
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}
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public AbstractAddress recordDataReferenceInCode(byte[] data, int alignment) {
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assert data != null;
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if (debug.isLogEnabled()) {
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debug.log("Data reference in code: pos = %d, data = %s", asm.position(), Arrays.toString(data));
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}
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return recordDataSectionReference(new RawData(data, alignment));
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}
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/**
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* Notifies this object of a branch instruction at offset {@code pcOffset} in the code.
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*
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* @param isNegated negation status of the branch's condition.
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*/
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@SuppressWarnings("unused")
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public void recordBranch(int pcOffset, boolean isNegated) {
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}
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|
|
392 |
/**
|
|
393 |
* Notifies this object of a call instruction belonging to an INVOKEVIRTUAL or INVOKEINTERFACE
|
|
394 |
* at offset {@code pcOffset} in the code.
|
|
395 |
*
|
|
396 |
* @param nodeSourcePosition source position of the corresponding invoke.
|
|
397 |
*/
|
|
398 |
@SuppressWarnings("unused")
|
|
399 |
public void recordInvokeVirtualOrInterfaceCallOp(int pcOffset, NodeSourcePosition nodeSourcePosition) {
|
|
400 |
}
|
|
401 |
|
|
402 |
/**
|
|
403 |
* Notifies this object of a call instruction belonging to an INLINE_INVOKE at offset
|
|
404 |
* {@code pcOffset} in the code.
|
|
405 |
*
|
|
406 |
* @param nodeSourcePosition source position of the corresponding invoke.
|
|
407 |
*/
|
|
408 |
@SuppressWarnings("unused")
|
|
409 |
public void recordInlineInvokeCallOp(int pcOffset, NodeSourcePosition nodeSourcePosition) {
|
46807
|
410 |
}
|
|
411 |
|
|
412 |
/**
|
43972
|
413 |
* Returns the integer value of any constant that can be represented by a 32-bit integer value,
|
|
414 |
* including long constants that fit into the 32-bit range.
|
|
415 |
*/
|
|
416 |
public int asIntConst(Value value) {
|
|
417 |
assert isJavaConstant(value) && asJavaConstant(value).getJavaKind().isNumericInteger();
|
|
418 |
JavaConstant constant = asJavaConstant(value);
|
|
419 |
long c = constant.asLong();
|
|
420 |
if (!NumUtil.isInt(c)) {
|
|
421 |
throw GraalError.shouldNotReachHere();
|
|
422 |
}
|
|
423 |
return (int) c;
|
|
424 |
}
|
|
425 |
|
|
426 |
/**
|
|
427 |
* Returns the float value of any constant that can be represented by a 32-bit float value.
|
|
428 |
*/
|
|
429 |
public float asFloatConst(Value value) {
|
|
430 |
assert isJavaConstant(value) && asJavaConstant(value).getJavaKind() == JavaKind.Float;
|
|
431 |
JavaConstant constant = asJavaConstant(value);
|
|
432 |
return constant.asFloat();
|
|
433 |
}
|
|
434 |
|
|
435 |
/**
|
|
436 |
* Returns the long value of any constant that can be represented by a 64-bit long value.
|
|
437 |
*/
|
|
438 |
public long asLongConst(Value value) {
|
|
439 |
assert isJavaConstant(value) && asJavaConstant(value).getJavaKind() == JavaKind.Long;
|
|
440 |
JavaConstant constant = asJavaConstant(value);
|
|
441 |
return constant.asLong();
|
|
442 |
}
|
|
443 |
|
|
444 |
/**
|
|
445 |
* Returns the double value of any constant that can be represented by a 64-bit float value.
|
|
446 |
*/
|
|
447 |
public double asDoubleConst(Value value) {
|
|
448 |
assert isJavaConstant(value) && asJavaConstant(value).getJavaKind() == JavaKind.Double;
|
|
449 |
JavaConstant constant = asJavaConstant(value);
|
|
450 |
return constant.asDouble();
|
|
451 |
}
|
|
452 |
|
|
453 |
/**
|
|
454 |
* Returns the address of a float constant that is embedded as a data reference into the code.
|
|
455 |
*/
|
|
456 |
public AbstractAddress asFloatConstRef(JavaConstant value) {
|
|
457 |
return asFloatConstRef(value, 4);
|
|
458 |
}
|
|
459 |
|
|
460 |
public AbstractAddress asFloatConstRef(JavaConstant value, int alignment) {
|
|
461 |
assert value.getJavaKind() == JavaKind.Float;
|
|
462 |
return recordDataReferenceInCode(value, alignment);
|
|
463 |
}
|
|
464 |
|
|
465 |
/**
|
|
466 |
* Returns the address of a double constant that is embedded as a data reference into the code.
|
|
467 |
*/
|
|
468 |
public AbstractAddress asDoubleConstRef(JavaConstant value) {
|
|
469 |
return asDoubleConstRef(value, 8);
|
|
470 |
}
|
|
471 |
|
|
472 |
public AbstractAddress asDoubleConstRef(JavaConstant value, int alignment) {
|
|
473 |
assert value.getJavaKind() == JavaKind.Double;
|
|
474 |
return recordDataReferenceInCode(value, alignment);
|
|
475 |
}
|
|
476 |
|
|
477 |
/**
|
|
478 |
* Returns the address of a long constant that is embedded as a data reference into the code.
|
|
479 |
*/
|
|
480 |
public AbstractAddress asLongConstRef(JavaConstant value) {
|
|
481 |
assert value.getJavaKind() == JavaKind.Long;
|
|
482 |
return recordDataReferenceInCode(value, 8);
|
|
483 |
}
|
|
484 |
|
|
485 |
/**
|
|
486 |
* Returns the address of an object constant that is embedded as a data reference into the code.
|
|
487 |
*/
|
|
488 |
public AbstractAddress asObjectConstRef(JavaConstant value) {
|
|
489 |
assert value.getJavaKind() == JavaKind.Object;
|
|
490 |
return recordDataReferenceInCode(value, 8);
|
|
491 |
}
|
|
492 |
|
|
493 |
public AbstractAddress asByteAddr(Value value) {
|
|
494 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Byte.getByteCount();
|
|
495 |
return asAddress(value);
|
|
496 |
}
|
|
497 |
|
|
498 |
public AbstractAddress asShortAddr(Value value) {
|
|
499 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Short.getByteCount();
|
|
500 |
return asAddress(value);
|
|
501 |
}
|
|
502 |
|
|
503 |
public AbstractAddress asIntAddr(Value value) {
|
|
504 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Int.getByteCount();
|
|
505 |
return asAddress(value);
|
|
506 |
}
|
|
507 |
|
|
508 |
public AbstractAddress asLongAddr(Value value) {
|
|
509 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Long.getByteCount();
|
|
510 |
return asAddress(value);
|
|
511 |
}
|
|
512 |
|
|
513 |
public AbstractAddress asFloatAddr(Value value) {
|
|
514 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Float.getByteCount();
|
|
515 |
return asAddress(value);
|
|
516 |
}
|
|
517 |
|
|
518 |
public AbstractAddress asDoubleAddr(Value value) {
|
|
519 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Double.getByteCount();
|
|
520 |
return asAddress(value);
|
|
521 |
}
|
|
522 |
|
|
523 |
public AbstractAddress asAddress(Value value) {
|
|
524 |
assert isStackSlot(value);
|
|
525 |
StackSlot slot = asStackSlot(value);
|
|
526 |
return asm.makeAddress(frameMap.getRegisterConfig().getFrameRegister(), frameMap.offsetForStackSlot(slot));
|
|
527 |
}
|
|
528 |
|
|
529 |
/**
|
|
530 |
* Determines if a given edge from the block currently being emitted goes to its lexical
|
|
531 |
* successor.
|
|
532 |
*/
|
|
533 |
public boolean isSuccessorEdge(LabelRef edge) {
|
|
534 |
assert lir != null;
|
|
535 |
AbstractBlockBase<?>[] order = lir.codeEmittingOrder();
|
|
536 |
assert order[currentBlockIndex] == edge.getSourceBlock();
|
|
537 |
AbstractBlockBase<?> nextBlock = LIR.getNextBlock(order, currentBlockIndex);
|
|
538 |
return nextBlock == edge.getTargetBlock();
|
|
539 |
}
|
|
540 |
|
|
541 |
/**
|
|
542 |
* Emits code for {@code lir} in its {@linkplain LIR#codeEmittingOrder() code emitting order}.
|
|
543 |
*/
|
|
544 |
public void emit(@SuppressWarnings("hiding") LIR lir) {
|
|
545 |
assert this.lir == null;
|
|
546 |
assert currentBlockIndex == 0;
|
|
547 |
this.lir = lir;
|
|
548 |
this.currentBlockIndex = 0;
|
|
549 |
frameContext.enter(this);
|
|
550 |
for (AbstractBlockBase<?> b : lir.codeEmittingOrder()) {
|
|
551 |
assert (b == null && lir.codeEmittingOrder()[currentBlockIndex] == null) || lir.codeEmittingOrder()[currentBlockIndex].equals(b);
|
|
552 |
emitBlock(b);
|
|
553 |
currentBlockIndex++;
|
|
554 |
}
|
|
555 |
this.lir = null;
|
|
556 |
this.currentBlockIndex = 0;
|
|
557 |
}
|
|
558 |
|
|
559 |
private void emitBlock(AbstractBlockBase<?> block) {
|
|
560 |
if (block == null) {
|
|
561 |
return;
|
|
562 |
}
|
47798
|
563 |
boolean emitComment = debug.isDumpEnabled(DebugContext.BASIC_LEVEL) || Options.PrintLIRWithAssembly.getValue(getOptions());
|
46344
|
564 |
if (emitComment) {
|
43972
|
565 |
blockComment(String.format("block B%d %s", block.getId(), block.getLoop()));
|
|
566 |
}
|
|
567 |
|
|
568 |
for (LIRInstruction op : lir.getLIRforBlock(block)) {
|
46344
|
569 |
if (emitComment) {
|
43972
|
570 |
blockComment(String.format("%d %s", op.id(), op));
|
|
571 |
}
|
|
572 |
|
|
573 |
try {
|
|
574 |
if (beforeOp != null) {
|
|
575 |
beforeOp.accept(op);
|
|
576 |
}
|
58299
|
577 |
emitOp(op);
|
43972
|
578 |
if (afterOp != null) {
|
|
579 |
afterOp.accept(op);
|
|
580 |
}
|
|
581 |
} catch (GraalError e) {
|
46680
|
582 |
throw e.addContext("lir instruction", block + "@" + op.id() + " " + op.getClass().getName() + " " + op + "\n" + Arrays.toString(lir.codeEmittingOrder()));
|
43972
|
583 |
}
|
|
584 |
}
|
|
585 |
}
|
|
586 |
|
58299
|
587 |
private void emitOp(LIRInstruction op) {
|
43972
|
588 |
try {
|
58299
|
589 |
int start = asm.position();
|
|
590 |
op.emitCode(this);
|
43972
|
591 |
if (op.getPosition() != null) {
|
58299
|
592 |
recordSourceMapping(start, asm.position(), op.getPosition());
|
|
593 |
}
|
|
594 |
if (LIR_INSTRUCTION_VERIFIERS.size() > 0 && start < asm.position()) {
|
|
595 |
int end = asm.position();
|
|
596 |
for (CodeAnnotation codeAnnotation : compilationResult.getCodeAnnotations()) {
|
|
597 |
if (codeAnnotation instanceof JumpTable) {
|
|
598 |
// Skip jump table. Here we assume the jump table is at the tail of the
|
|
599 |
// emitted code.
|
|
600 |
int jumpTableStart = codeAnnotation.position;
|
|
601 |
if (jumpTableStart >= start && jumpTableStart < end) {
|
|
602 |
end = jumpTableStart;
|
|
603 |
}
|
|
604 |
}
|
|
605 |
}
|
|
606 |
byte[] emittedCode = asm.copy(start, end);
|
|
607 |
for (LIRInstructionVerifier verifier : LIR_INSTRUCTION_VERIFIERS) {
|
|
608 |
verifier.verify(op, emittedCode);
|
|
609 |
}
|
43972
|
610 |
}
|
54084
|
611 |
} catch (BailoutException e) {
|
|
612 |
throw e;
|
43972
|
613 |
} catch (AssertionError t) {
|
|
614 |
throw new GraalError(t);
|
|
615 |
} catch (RuntimeException t) {
|
|
616 |
throw new GraalError(t);
|
|
617 |
}
|
|
618 |
}
|
|
619 |
|
|
620 |
public void resetForEmittingCode() {
|
|
621 |
asm.reset();
|
|
622 |
compilationResult.resetForEmittingCode();
|
|
623 |
if (exceptionInfoList != null) {
|
|
624 |
exceptionInfoList.clear();
|
|
625 |
}
|
|
626 |
if (dataCache != null) {
|
|
627 |
dataCache.clear();
|
|
628 |
}
|
54084
|
629 |
lir = null;
|
|
630 |
currentBlockIndex = 0;
|
43972
|
631 |
}
|
|
632 |
|
|
633 |
public void setOpCallback(Consumer<LIRInstruction> beforeOp, Consumer<LIRInstruction> afterOp) {
|
|
634 |
this.beforeOp = beforeOp;
|
|
635 |
this.afterOp = afterOp;
|
|
636 |
}
|
46344
|
637 |
|
|
638 |
public OptionValues getOptions() {
|
|
639 |
return options;
|
|
640 |
}
|
46807
|
641 |
|
54084
|
642 |
/**
|
|
643 |
* Builds up a map for label and LIR instruction positions where labels are or labels pointing
|
|
644 |
* to.
|
|
645 |
*/
|
|
646 |
public void buildLabelOffsets(LIR generatedLIR) {
|
|
647 |
labelBindLirPositions = EconomicMap.create(Equivalence.IDENTITY);
|
|
648 |
lirPositions = EconomicMap.create(Equivalence.IDENTITY);
|
|
649 |
int instructionPosition = 0;
|
|
650 |
for (AbstractBlockBase<?> block : generatedLIR.codeEmittingOrder()) {
|
|
651 |
if (block != null) {
|
|
652 |
for (LIRInstruction op : generatedLIR.getLIRforBlock(block)) {
|
|
653 |
if (op instanceof LabelHoldingOp) {
|
|
654 |
Label label = ((LabelHoldingOp) op).getLabel();
|
|
655 |
if (label != null) {
|
|
656 |
labelBindLirPositions.put(label, instructionPosition);
|
|
657 |
}
|
|
658 |
}
|
54601
|
659 |
lirPositions.put(op, instructionPosition);
|
54084
|
660 |
instructionPosition++;
|
|
661 |
}
|
|
662 |
}
|
|
663 |
}
|
|
664 |
}
|
|
665 |
|
|
666 |
/**
|
|
667 |
* Answers the code generator whether the jump from instruction to label is within disp LIR
|
|
668 |
* instructions.
|
|
669 |
*
|
|
670 |
* @param disp Maximum number of LIR instructions between label and instruction
|
|
671 |
*/
|
|
672 |
public boolean labelWithinRange(LIRInstruction instruction, Label label, int disp) {
|
|
673 |
if (conservativeLabelOffsets) {
|
|
674 |
return false;
|
|
675 |
}
|
|
676 |
Integer labelPosition = labelBindLirPositions.get(label);
|
|
677 |
Integer instructionPosition = lirPositions.get(instruction);
|
|
678 |
boolean result;
|
|
679 |
if (labelPosition != null && instructionPosition != null) {
|
|
680 |
result = Math.abs(labelPosition - instructionPosition) < disp;
|
|
681 |
} else {
|
|
682 |
result = false;
|
|
683 |
}
|
|
684 |
return result;
|
|
685 |
}
|
|
686 |
|
|
687 |
/**
|
|
688 |
* Sets this CompilationResultBuilder into conservative mode. If set,
|
|
689 |
* {@link CompilationResultBuilder#labelWithinRange(LIRInstruction, Label, int)} always returns
|
|
690 |
* false.
|
|
691 |
*/
|
|
692 |
public void setConservativeLabelRanges() {
|
|
693 |
this.conservativeLabelOffsets = true;
|
|
694 |
}
|
59095
|
695 |
|
|
696 |
public final boolean needsClearUpperVectorRegisters() {
|
|
697 |
for (AbstractBlockBase<?> block : lir.codeEmittingOrder()) {
|
|
698 |
if (block == null) {
|
|
699 |
continue;
|
|
700 |
}
|
|
701 |
for (LIRInstruction op : lir.getLIRforBlock(block)) {
|
|
702 |
if (op.needsClearUpperVectorRegisters()) {
|
|
703 |
return true;
|
|
704 |
}
|
|
705 |
}
|
|
706 |
}
|
|
707 |
return false;
|
|
708 |
}
|
43972
|
709 |
}
|