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/*
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* Copyright (c) 2013, 2016, 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 org.graalvm.compiler.asm.AbstractAddress;
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import org.graalvm.compiler.asm.Assembler;
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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.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.Assertions;
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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.LabelRef;
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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.util.EconomicMap;
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import org.graalvm.util.Equivalence;
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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.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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// @formatter:off
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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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// @formatter:on
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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 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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private 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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private 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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public CompilationResultBuilder(CodeCacheProvider codeCache, ForeignCallsProvider foreignCalls, FrameMap frameMap, Assembler asm, DataBuilder dataBuilder, FrameContext frameContext,
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OptionValues options, DebugContext debug, CompilationResult compilationResult) {
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this(codeCache, foreignCalls, frameMap, asm, dataBuilder, frameContext, options, debug, compilationResult, EconomicMap.create(Equivalence.DEFAULT));
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}
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public CompilationResultBuilder(CodeCacheProvider codeCache, ForeignCallsProvider foreignCalls, FrameMap frameMap, Assembler asm, DataBuilder dataBuilder, FrameContext frameContext,
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OptionValues options, DebugContext debug, CompilationResult compilationResult, 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.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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if (dataBuilder.needDetailedPatchingInformation() || Assertions.assertionsEnabled()) {
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/*
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* Always enabled in debug mode, even when the VM does not request detailed information,
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* to increase test coverage.
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*/
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asm.setCodePatchingAnnotationConsumer(assemblerCodeAnnotation -> compilationResult.addAnnotation(new AssemblerAnnotation(assemblerCodeAnnotation)));
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}
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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 = 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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data.updateAlignment(alignment);
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return recordDataSectionReference(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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* Returns the integer value of any constant that can be represented by a 32-bit integer value,
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* including long constants that fit into the 32-bit range.
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*/
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public int asIntConst(Value value) {
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assert isJavaConstant(value) && asJavaConstant(value).getJavaKind().isNumericInteger();
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JavaConstant constant = asJavaConstant(value);
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long c = constant.asLong();
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if (!NumUtil.isInt(c)) {
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throw GraalError.shouldNotReachHere();
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}
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return (int) c;
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}
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/**
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* Returns the float value of any constant that can be represented by a 32-bit float value.
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*/
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public float asFloatConst(Value value) {
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assert isJavaConstant(value) && asJavaConstant(value).getJavaKind() == JavaKind.Float;
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JavaConstant constant = asJavaConstant(value);
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return constant.asFloat();
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}
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/**
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* Returns the long value of any constant that can be represented by a 64-bit long value.
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*/
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public long asLongConst(Value value) {
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assert isJavaConstant(value) && asJavaConstant(value).getJavaKind() == JavaKind.Long;
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JavaConstant constant = asJavaConstant(value);
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return constant.asLong();
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}
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/**
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* Returns the double value of any constant that can be represented by a 64-bit float value.
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*/
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public double asDoubleConst(Value value) {
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assert isJavaConstant(value) && asJavaConstant(value).getJavaKind() == JavaKind.Double;
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JavaConstant constant = asJavaConstant(value);
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return constant.asDouble();
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}
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/**
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* Returns the address of a float constant that is embedded as a data reference into the code.
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*/
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public AbstractAddress asFloatConstRef(JavaConstant value) {
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return asFloatConstRef(value, 4);
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}
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public AbstractAddress asFloatConstRef(JavaConstant value, int alignment) {
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assert value.getJavaKind() == JavaKind.Float;
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return recordDataReferenceInCode(value, alignment);
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}
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/**
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* Returns the address of a double constant that is embedded as a data reference into the code.
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*/
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public AbstractAddress asDoubleConstRef(JavaConstant value) {
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return asDoubleConstRef(value, 8);
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}
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public AbstractAddress asDoubleConstRef(JavaConstant value, int alignment) {
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assert value.getJavaKind() == JavaKind.Double;
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return recordDataReferenceInCode(value, alignment);
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}
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/**
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* Returns the address of a long constant that is embedded as a data reference into the code.
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*/
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public AbstractAddress asLongConstRef(JavaConstant value) {
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assert value.getJavaKind() == JavaKind.Long;
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return recordDataReferenceInCode(value, 8);
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}
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/**
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* Returns the address of an object constant that is embedded as a data reference into the code.
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*/
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|
391 |
public AbstractAddress asObjectConstRef(JavaConstant value) {
|
|
392 |
assert value.getJavaKind() == JavaKind.Object;
|
|
393 |
return recordDataReferenceInCode(value, 8);
|
|
394 |
}
|
|
395 |
|
|
396 |
public AbstractAddress asByteAddr(Value value) {
|
|
397 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Byte.getByteCount();
|
|
398 |
return asAddress(value);
|
|
399 |
}
|
|
400 |
|
|
401 |
public AbstractAddress asShortAddr(Value value) {
|
|
402 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Short.getByteCount();
|
|
403 |
return asAddress(value);
|
|
404 |
}
|
|
405 |
|
|
406 |
public AbstractAddress asIntAddr(Value value) {
|
|
407 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Int.getByteCount();
|
|
408 |
return asAddress(value);
|
|
409 |
}
|
|
410 |
|
|
411 |
public AbstractAddress asLongAddr(Value value) {
|
|
412 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Long.getByteCount();
|
|
413 |
return asAddress(value);
|
|
414 |
}
|
|
415 |
|
|
416 |
public AbstractAddress asFloatAddr(Value value) {
|
|
417 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Float.getByteCount();
|
|
418 |
return asAddress(value);
|
|
419 |
}
|
|
420 |
|
|
421 |
public AbstractAddress asDoubleAddr(Value value) {
|
|
422 |
assert value.getPlatformKind().getSizeInBytes() >= JavaKind.Double.getByteCount();
|
|
423 |
return asAddress(value);
|
|
424 |
}
|
|
425 |
|
|
426 |
public AbstractAddress asAddress(Value value) {
|
|
427 |
assert isStackSlot(value);
|
|
428 |
StackSlot slot = asStackSlot(value);
|
|
429 |
return asm.makeAddress(frameMap.getRegisterConfig().getFrameRegister(), frameMap.offsetForStackSlot(slot));
|
|
430 |
}
|
|
431 |
|
|
432 |
/**
|
|
433 |
* Determines if a given edge from the block currently being emitted goes to its lexical
|
|
434 |
* successor.
|
|
435 |
*/
|
|
436 |
public boolean isSuccessorEdge(LabelRef edge) {
|
|
437 |
assert lir != null;
|
|
438 |
AbstractBlockBase<?>[] order = lir.codeEmittingOrder();
|
|
439 |
assert order[currentBlockIndex] == edge.getSourceBlock();
|
|
440 |
AbstractBlockBase<?> nextBlock = LIR.getNextBlock(order, currentBlockIndex);
|
|
441 |
return nextBlock == edge.getTargetBlock();
|
|
442 |
}
|
|
443 |
|
|
444 |
/**
|
|
445 |
* Emits code for {@code lir} in its {@linkplain LIR#codeEmittingOrder() code emitting order}.
|
|
446 |
*/
|
|
447 |
public void emit(@SuppressWarnings("hiding") LIR lir) {
|
|
448 |
assert this.lir == null;
|
|
449 |
assert currentBlockIndex == 0;
|
|
450 |
this.lir = lir;
|
|
451 |
this.currentBlockIndex = 0;
|
|
452 |
frameContext.enter(this);
|
|
453 |
for (AbstractBlockBase<?> b : lir.codeEmittingOrder()) {
|
|
454 |
assert (b == null && lir.codeEmittingOrder()[currentBlockIndex] == null) || lir.codeEmittingOrder()[currentBlockIndex].equals(b);
|
|
455 |
emitBlock(b);
|
|
456 |
currentBlockIndex++;
|
|
457 |
}
|
|
458 |
this.lir = null;
|
|
459 |
this.currentBlockIndex = 0;
|
|
460 |
}
|
|
461 |
|
|
462 |
private void emitBlock(AbstractBlockBase<?> block) {
|
|
463 |
if (block == null) {
|
|
464 |
return;
|
|
465 |
}
|
46640
|
466 |
boolean emitComment = debug.isDumpEnabled(DebugContext.BASIC_LEVEL) || PrintLIRWithAssembly.getValue(getOptions());
|
46344
|
467 |
if (emitComment) {
|
43972
|
468 |
blockComment(String.format("block B%d %s", block.getId(), block.getLoop()));
|
|
469 |
}
|
|
470 |
|
|
471 |
for (LIRInstruction op : lir.getLIRforBlock(block)) {
|
46344
|
472 |
if (emitComment) {
|
43972
|
473 |
blockComment(String.format("%d %s", op.id(), op));
|
|
474 |
}
|
|
475 |
|
|
476 |
try {
|
|
477 |
if (beforeOp != null) {
|
|
478 |
beforeOp.accept(op);
|
|
479 |
}
|
|
480 |
emitOp(this, op);
|
|
481 |
if (afterOp != null) {
|
|
482 |
afterOp.accept(op);
|
|
483 |
}
|
|
484 |
} catch (GraalError e) {
|
46680
|
485 |
throw e.addContext("lir instruction", block + "@" + op.id() + " " + op.getClass().getName() + " " + op + "\n" + Arrays.toString(lir.codeEmittingOrder()));
|
43972
|
486 |
}
|
|
487 |
}
|
|
488 |
}
|
|
489 |
|
|
490 |
private static void emitOp(CompilationResultBuilder crb, LIRInstruction op) {
|
|
491 |
try {
|
|
492 |
int start = crb.asm.position();
|
|
493 |
op.emitCode(crb);
|
|
494 |
if (op.getPosition() != null) {
|
|
495 |
crb.recordSourceMapping(start, crb.asm.position(), op.getPosition());
|
|
496 |
}
|
|
497 |
} catch (AssertionError t) {
|
|
498 |
throw new GraalError(t);
|
|
499 |
} catch (RuntimeException t) {
|
|
500 |
throw new GraalError(t);
|
|
501 |
}
|
|
502 |
}
|
|
503 |
|
|
504 |
public void resetForEmittingCode() {
|
|
505 |
asm.reset();
|
|
506 |
compilationResult.resetForEmittingCode();
|
|
507 |
if (exceptionInfoList != null) {
|
|
508 |
exceptionInfoList.clear();
|
|
509 |
}
|
|
510 |
if (dataCache != null) {
|
|
511 |
dataCache.clear();
|
|
512 |
}
|
|
513 |
}
|
|
514 |
|
|
515 |
public void setOpCallback(Consumer<LIRInstruction> beforeOp, Consumer<LIRInstruction> afterOp) {
|
|
516 |
this.beforeOp = beforeOp;
|
|
517 |
this.afterOp = afterOp;
|
|
518 |
}
|
46344
|
519 |
|
|
520 |
public OptionValues getOptions() {
|
|
521 |
return options;
|
|
522 |
}
|
43972
|
523 |
}
|