Mercurial > hg > graal-compiler
view graal/com.oracle.graal.lir/src/com/oracle/graal/lir/CompositeValueClass.java @ 16770:8341b061e496
Clone CompositeValue in ValuePosition.set().
author | Josef Eisl <josef.eisl@jku.at> |
---|---|
date | Mon, 11 Aug 2014 18:07:31 +0200 |
parents | 3507ad1b0c44 |
children | 0d47af538a92 |
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/* * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.lir; import java.lang.reflect.*; import java.util.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.common.*; import com.oracle.graal.lir.CompositeValue.Component; import com.oracle.graal.lir.LIRInstruction.InstructionValueProcedure; import com.oracle.graal.lir.LIRInstruction.OperandFlag; import com.oracle.graal.lir.LIRInstruction.OperandMode; import com.oracle.graal.lir.LIRInstruction.ValuePositionProcedure; /** * Lazily associated metadata for every {@link CompositeValue} type. The metadata includes: * <ul> * <li>The offsets of fields annotated with {@link Component} as well as methods for iterating over * such fields.</li> * </ul> */ public class CompositeValueClass extends LIRIntrospection { public static final CompositeValueClass get(Class<? extends CompositeValue> c) { CompositeValueClass clazz = (CompositeValueClass) allClasses.get(c); if (clazz != null) { return clazz; } // We can have a race of multiple threads creating the LIRInstructionClass at the same time. // However, only one will be put into the map, and this is the one returned by all threads. clazz = new CompositeValueClass(c); CompositeValueClass oldClazz = (CompositeValueClass) allClasses.putIfAbsent(c, clazz); if (oldClazz != null) { return oldClazz; } else { return clazz; } } private final int directComponentCount; private final long[] componentOffsets; private final EnumSet<OperandFlag>[] componentFlags; public CompositeValueClass(Class<? extends CompositeValue> clazz) { this(clazz, new DefaultCalcOffset()); } @SuppressWarnings("unchecked") public CompositeValueClass(Class<? extends CompositeValue> clazz, CalcOffset calcOffset) { super(clazz); ValueFieldScanner scanner = new ValueFieldScanner(calcOffset); scanner.scan(clazz); OperandModeAnnotation mode = scanner.valueAnnotations.get(CompositeValue.Component.class); directComponentCount = mode.scalarOffsets.size(); componentOffsets = sortedLongCopy(mode.scalarOffsets, mode.arrayOffsets); componentFlags = arrayUsingSortedOffsets(mode.flags, componentOffsets, new EnumSet[componentOffsets.length]); dataOffsets = sortedLongCopy(scanner.dataOffsets); fieldNames = scanner.fieldNames; fieldTypes = scanner.fieldTypes; } @Override protected void rescanFieldOffsets(CalcOffset calc) { ValueFieldScanner scanner = new ValueFieldScanner(calc); scanner.scan(getClazz()); OperandModeAnnotation mode = scanner.valueAnnotations.get(CompositeValue.Component.class); copyInto(componentOffsets, sortedLongCopy(mode.scalarOffsets, mode.arrayOffsets)); copyInto(dataOffsets, sortedLongCopy(scanner.dataOffsets)); fieldNames.clear(); fieldNames.putAll(scanner.fieldNames); fieldTypes.clear(); fieldTypes.putAll(scanner.fieldTypes); } private static class ValueFieldScanner extends FieldScanner { public ValueFieldScanner(CalcOffset calc) { super(calc); valueAnnotations.put(CompositeValue.Component.class, new OperandModeAnnotation()); } @Override public void scan(Class<?> clazz) { super.scan(clazz); } @Override protected EnumSet<OperandFlag> getFlags(Field field) { EnumSet<OperandFlag> result = EnumSet.noneOf(OperandFlag.class); if (field.isAnnotationPresent(CompositeValue.Component.class)) { result.addAll(Arrays.asList(field.getAnnotation(CompositeValue.Component.class).value())); } else { GraalInternalError.shouldNotReachHere(); } return result; } } @Override public String toString() { StringBuilder str = new StringBuilder(); str.append(getClass().getSimpleName()).append(" ").append(getClazz().getSimpleName()).append(" component["); for (int i = 0; i < componentOffsets.length; i++) { str.append(i == 0 ? "" : ", ").append(componentOffsets[i]); } str.append("] data["); for (int i = 0; i < dataOffsets.length; i++) { str.append(i == 0 ? "" : ", ").append(dataOffsets[i]); } str.append("]"); return str.toString(); } public final CompositeValue forEachComponent(LIRInstruction inst, CompositeValue obj, OperandMode mode, InstructionValueProcedure proc) { return forEachComponent(inst, obj, directComponentCount, componentOffsets, mode, componentFlags, proc); } public final void forEachComponent(LIRInstruction inst, CompositeValue obj, OperandMode mode, ValuePositionProcedure proc, ValuePosition outerPosition) { forEach(inst, obj, directComponentCount, componentOffsets, mode, componentFlags, proc, outerPosition); } public String toString(CompositeValue obj) { StringBuilder result = new StringBuilder(); appendValues(result, obj, "", "", "{", "}", new String[]{""}, componentOffsets); for (int i = 0; i < dataOffsets.length; i++) { result.append(" ").append(fieldNames.get(dataOffsets[i])).append(": ").append(getFieldString(obj, dataOffsets[i])); } return result.toString(); } Value getValue(CompositeValue obj, ValuePosition pos) { return getValueForPosition(obj, componentOffsets, directComponentCount, pos); } CompositeValue createUpdatedValue(CompositeValue compValue, ValuePosition pos, Value value) { CompositeValue newCompValue = compValue.clone(); setValueForPosition(newCompValue, componentOffsets, directComponentCount, pos, value); return newCompValue; } EnumSet<OperandFlag> getFlags(ValuePosition pos) { return componentFlags[pos.getIndex()]; } void copyValueArrays(CompositeValue compositeValue) { for (int i = directComponentCount; i < componentOffsets.length; i++) { Value[] valueArray = getValueArray(compositeValue, componentOffsets[i]); Value[] newValueArray = Arrays.copyOf(valueArray, valueArray.length); setValueArray(compositeValue, componentOffsets[i], newValueArray); } } }