/*
* Copyright (c) 2012, 2016, 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 org.graalvm.compiler.word;
import static org.graalvm.compiler.word.UnsafeAccess.UNSAFE;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.graalvm.api.word.ComparableWord;
import org.graalvm.api.word.LocationIdentity;
import org.graalvm.api.word.Pointer;
import org.graalvm.api.word.Signed;
import org.graalvm.api.word.Unsigned;
import org.graalvm.api.word.WordBase;
import org.graalvm.api.word.WordFactory;
import org.graalvm.compiler.core.common.calc.Condition;
import org.graalvm.compiler.core.common.calc.UnsignedMath;
import org.graalvm.compiler.debug.GraalError;
import org.graalvm.compiler.nodes.ValueNode;
import org.graalvm.compiler.nodes.calc.AddNode;
import org.graalvm.compiler.nodes.calc.AndNode;
import org.graalvm.compiler.nodes.calc.LeftShiftNode;
import org.graalvm.compiler.nodes.calc.MulNode;
import org.graalvm.compiler.nodes.calc.OrNode;
import org.graalvm.compiler.nodes.calc.RightShiftNode;
import org.graalvm.compiler.nodes.calc.SignedDivNode;
import org.graalvm.compiler.nodes.calc.SignedRemNode;
import org.graalvm.compiler.nodes.calc.SubNode;
import org.graalvm.compiler.nodes.calc.UnsignedDivNode;
import org.graalvm.compiler.nodes.calc.UnsignedRemNode;
import org.graalvm.compiler.nodes.calc.UnsignedRightShiftNode;
import org.graalvm.compiler.nodes.calc.XorNode;
import org.graalvm.compiler.nodes.memory.HeapAccess.BarrierType;
import org.graalvm.compiler.nodes.memory.address.AddressNode.Address;
public abstract class Word extends WordFactory implements Signed, Unsigned, Pointer {
/**
* Links a method to a canonical operation represented by an {@link Opcode} val.
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface Operation {
Class<? extends ValueNode> node() default ValueNode.class;
boolean rightOperandIsInt() default false;
Opcode opcode() default Opcode.NODE_CLASS;
Condition condition() default Condition.EQ;
}
/**
* The canonical {@link Operation} represented by a method in the {@link Word} class.
*/
public enum Opcode {
NODE_CLASS,
COMPARISON,
NOT,
READ_POINTER,
READ_OBJECT,
READ_BARRIERED,
READ_HEAP,
WRITE_POINTER,
WRITE_OBJECT,
WRITE_BARRIERED,
CAS_POINTER,
INITIALIZE,
FROM_ADDRESS,
OBJECT_TO_TRACKED,
OBJECT_TO_UNTRACKED,
TO_OBJECT,
TO_OBJECT_NON_NULL,
TO_RAW_VALUE,
}
public static class BoxFactoryImpl implements BoxFactory {
@SuppressWarnings("unchecked")
@Override
public <T extends WordBase> T box(long val) {
return (T) HostedWord.boxLong(val);
}
}
/*
* Outside users must use the different signed() and unsigned() methods to ensure proper
* expansion of 32-bit values on 64-bit systems.
*/
@SuppressWarnings("unchecked")
private static <T extends WordBase> T box(long val) {
return (T) HostedWord.boxLong(val);
}
protected abstract long unbox();
private static Word intParam(int val) {
return box(val);
}
@Override
@Operation(opcode = Opcode.TO_RAW_VALUE)
public long rawValue() {
return unbox();
}
/**
* Convert an {@link Object} to a {@link Pointer}, keeping the reference information. If the
* returned pointer or any value derived from it is alive across a safepoint, it will be
* tracked. Depending on the arithmetic on the pointer and the capabilities of the backend to
* deal with derived references, this may work correctly, or result in a compiler error.
*/
@Operation(opcode = Opcode.OBJECT_TO_TRACKED)
public static native Word objectToTrackedPointer(Object val);
/**
* Convert an {@link Object} to a {@link Pointer}, dropping the reference information. If the
* returned pointer or any value derived from it is alive across a safepoint, it will be treated
* as a simple integer and not tracked by the garbage collector.
* <p>
* This is a dangerous operation, the GC could move the object without updating the pointer! Use
* only in combination with some mechanism to prevent the GC from moving or freeing the object
* as long as the pointer is in use.
* <p>
* If the result value should not be alive across a safepoint, it's better to use
* {@link #objectToTrackedPointer(Object)} instead.
*/
@Operation(opcode = Opcode.OBJECT_TO_UNTRACKED)
public static native Word objectToUntrackedPointer(Object val);
@Operation(opcode = Opcode.FROM_ADDRESS)
public static native Word fromAddress(Address address);
@Override
@Operation(opcode = Opcode.TO_OBJECT)
public native Object toObject();
@Override
@Operation(opcode = Opcode.TO_OBJECT_NON_NULL)
public native Object toObjectNonNull();
@Override
@Operation(node = AddNode.class)
public Word add(Signed val) {
return add((Word) val);
}
@Override
@Operation(node = AddNode.class)
public Word add(Unsigned val) {
return add((Word) val);
}
@Override
@Operation(node = AddNode.class)
public Word add(int val) {
return add(intParam(val));
}
@Operation(node = AddNode.class)
public Word add(Word val) {
return box(unbox() + val.unbox());
}
@Override
@Operation(node = SubNode.class)
public Word subtract(Signed val) {
return subtract((Word) val);
}
@Override
@Operation(node = SubNode.class)
public Word subtract(Unsigned val) {
return subtract((Word) val);
}
@Override
@Operation(node = SubNode.class)
public Word subtract(int val) {
return subtract(intParam(val));
}
@Operation(node = SubNode.class)
public Word subtract(Word val) {
return box(unbox() - val.unbox());
}
@Override
@Operation(node = MulNode.class)
public Word multiply(Signed val) {
return multiply((Word) val);
}
@Override
@Operation(node = MulNode.class)
public Word multiply(Unsigned val) {
return multiply((Word) val);
}
@Override
@Operation(node = MulNode.class)
public Word multiply(int val) {
return multiply(intParam(val));
}
@Operation(node = MulNode.class)
public Word multiply(Word val) {
return box(unbox() * val.unbox());
}
@Override
@Operation(node = SignedDivNode.class)
public Word signedDivide(Signed val) {
return signedDivide((Word) val);
}
@Override
@Operation(node = SignedDivNode.class)
public Word signedDivide(int val) {
return signedDivide(intParam(val));
}
@Operation(node = SignedDivNode.class)
public Word signedDivide(Word val) {
return box(unbox() / val.unbox());
}
@Override
@Operation(node = UnsignedDivNode.class)
public Word unsignedDivide(Unsigned val) {
return unsignedDivide((Word) val);
}
@Override
@Operation(node = UnsignedDivNode.class)
public Word unsignedDivide(int val) {
return signedDivide(intParam(val));
}
@Operation(node = UnsignedDivNode.class)
public Word unsignedDivide(Word val) {
return box(Long.divideUnsigned(unbox(), val.unbox()));
}
@Override
@Operation(node = SignedRemNode.class)
public Word signedRemainder(Signed val) {
return signedRemainder((Word) val);
}
@Override
@Operation(node = SignedRemNode.class)
public Word signedRemainder(int val) {
return signedRemainder(intParam(val));
}
@Operation(node = SignedRemNode.class)
public Word signedRemainder(Word val) {
return box(unbox() % val.unbox());
}
@Override
@Operation(node = UnsignedRemNode.class)
public Word unsignedRemainder(Unsigned val) {
return unsignedRemainder((Word) val);
}
@Override
@Operation(node = UnsignedRemNode.class)
public Word unsignedRemainder(int val) {
return signedRemainder(intParam(val));
}
@Operation(node = UnsignedRemNode.class)
public Word unsignedRemainder(Word val) {
return box(Long.remainderUnsigned(unbox(), val.unbox()));
}
@Override
@Operation(node = LeftShiftNode.class, rightOperandIsInt = true)
public Word shiftLeft(Unsigned val) {
return shiftLeft((Word) val);
}
@Override
@Operation(node = LeftShiftNode.class, rightOperandIsInt = true)
public Word shiftLeft(int val) {
return shiftLeft(intParam(val));
}
@Operation(node = LeftShiftNode.class, rightOperandIsInt = true)
public Word shiftLeft(Word val) {
return box(unbox() << val.unbox());
}
@Override
@Operation(node = RightShiftNode.class, rightOperandIsInt = true)
public Word signedShiftRight(Unsigned val) {
return signedShiftRight((Word) val);
}
@Override
@Operation(node = RightShiftNode.class, rightOperandIsInt = true)
public Word signedShiftRight(int val) {
return signedShiftRight(intParam(val));
}
@Operation(node = RightShiftNode.class, rightOperandIsInt = true)
public Word signedShiftRight(Word val) {
return box(unbox() >> val.unbox());
}
@Override
@Operation(node = UnsignedRightShiftNode.class, rightOperandIsInt = true)
public Word unsignedShiftRight(Unsigned val) {
return unsignedShiftRight((Word) val);
}
@Override
@Operation(node = UnsignedRightShiftNode.class, rightOperandIsInt = true)
public Word unsignedShiftRight(int val) {
return unsignedShiftRight(intParam(val));
}
@Operation(node = UnsignedRightShiftNode.class, rightOperandIsInt = true)
public Word unsignedShiftRight(Word val) {
return box(unbox() >>> val.unbox());
}
@Override
@Operation(node = AndNode.class)
public Word and(Signed val) {
return and((Word) val);
}
@Override
@Operation(node = AndNode.class)
public Word and(Unsigned val) {
return and((Word) val);
}
@Override
@Operation(node = AndNode.class)
public Word and(int val) {
return and(intParam(val));
}
@Operation(node = AndNode.class)
public Word and(Word val) {
return box(unbox() & val.unbox());
}
@Override
@Operation(node = OrNode.class)
public Word or(Signed val) {
return or((Word) val);
}
@Override
@Operation(node = OrNode.class)
public Word or(Unsigned val) {
return or((Word) val);
}
@Override
@Operation(node = OrNode.class)
public Word or(int val) {
return or(intParam(val));
}
@Operation(node = OrNode.class)
public Word or(Word val) {
return box(unbox() | val.unbox());
}
@Override
@Operation(node = XorNode.class)
public Word xor(Signed val) {
return xor((Word) val);
}
@Override
@Operation(node = XorNode.class)
public Word xor(Unsigned val) {
return xor((Word) val);
}
@Override
@Operation(node = XorNode.class)
public Word xor(int val) {
return xor(intParam(val));
}
@Operation(node = XorNode.class)
public Word xor(Word val) {
return box(unbox() ^ val.unbox());
}
@Override
@Operation(opcode = Opcode.NOT)
public Word not() {
return box(~unbox());
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.EQ)
public boolean equal(ComparableWord val) {
return equal((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.EQ)
public boolean equal(Signed val) {
return equal((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.EQ)
public boolean equal(Unsigned val) {
return equal((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.EQ)
public boolean equal(int val) {
return equal(intParam(val));
}
@Operation(opcode = Opcode.COMPARISON, condition = Condition.EQ)
public boolean equal(Word val) {
return unbox() == val.unbox();
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.NE)
public boolean notEqual(ComparableWord val) {
return notEqual((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.NE)
public boolean notEqual(Signed val) {
return notEqual((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.NE)
public boolean notEqual(Unsigned val) {
return notEqual((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.NE)
public boolean notEqual(int val) {
return notEqual(intParam(val));
}
@Operation(opcode = Opcode.COMPARISON, condition = Condition.NE)
public boolean notEqual(Word val) {
return unbox() != val.unbox();
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.LT)
public boolean lessThan(Signed val) {
return lessThan((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.LT)
public boolean lessThan(int val) {
return lessThan(intParam(val));
}
@Operation(opcode = Opcode.COMPARISON, condition = Condition.LT)
public boolean lessThan(Word val) {
return unbox() < val.unbox();
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.LE)
public boolean lessOrEqual(Signed val) {
return lessOrEqual((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.LE)
public boolean lessOrEqual(int val) {
return lessOrEqual(intParam(val));
}
@Operation(opcode = Opcode.COMPARISON, condition = Condition.LE)
public boolean lessOrEqual(Word val) {
return unbox() <= val.unbox();
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.GT)
public boolean greaterThan(Signed val) {
return greaterThan((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.GT)
public boolean greaterThan(int val) {
return greaterThan(intParam(val));
}
@Operation(opcode = Opcode.COMPARISON, condition = Condition.GT)
public boolean greaterThan(Word val) {
return unbox() > val.unbox();
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.GE)
public boolean greaterOrEqual(Signed val) {
return greaterOrEqual((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.GE)
public boolean greaterOrEqual(int val) {
return greaterOrEqual(intParam(val));
}
@Operation(opcode = Opcode.COMPARISON, condition = Condition.GE)
public boolean greaterOrEqual(Word val) {
return unbox() >= val.unbox();
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.BT)
public boolean belowThan(Unsigned val) {
return belowThan((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.BT)
public boolean belowThan(int val) {
return belowThan(intParam(val));
}
@Operation(opcode = Opcode.COMPARISON, condition = Condition.BT)
public boolean belowThan(Word val) {
return UnsignedMath.belowThan(unbox(), val.unbox());
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.BE)
public boolean belowOrEqual(Unsigned val) {
return belowOrEqual((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.BE)
public boolean belowOrEqual(int val) {
return belowOrEqual(intParam(val));
}
@Operation(opcode = Opcode.COMPARISON, condition = Condition.BE)
public boolean belowOrEqual(Word val) {
return UnsignedMath.belowOrEqual(unbox(), val.unbox());
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.AT)
public boolean aboveThan(Unsigned val) {
return aboveThan((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.AT)
public boolean aboveThan(int val) {
return aboveThan(intParam(val));
}
@Operation(opcode = Opcode.COMPARISON, condition = Condition.AT)
public boolean aboveThan(Word val) {
return UnsignedMath.aboveThan(unbox(), val.unbox());
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.AE)
public boolean aboveOrEqual(Unsigned val) {
return aboveOrEqual((Word) val);
}
@Override
@Operation(opcode = Opcode.COMPARISON, condition = Condition.AE)
public boolean aboveOrEqual(int val) {
return aboveOrEqual(intParam(val));
}
@Operation(opcode = Opcode.COMPARISON, condition = Condition.AE)
public boolean aboveOrEqual(Word val) {
return UnsignedMath.aboveOrEqual(unbox(), val.unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public byte readByte(WordBase offset, LocationIdentity locationIdentity) {
return UNSAFE.getByte(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public char readChar(WordBase offset, LocationIdentity locationIdentity) {
return UNSAFE.getChar(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public short readShort(WordBase offset, LocationIdentity locationIdentity) {
return UNSAFE.getShort(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public int readInt(WordBase offset, LocationIdentity locationIdentity) {
return UNSAFE.getInt(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public long readLong(WordBase offset, LocationIdentity locationIdentity) {
return UNSAFE.getLong(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public float readFloat(WordBase offset, LocationIdentity locationIdentity) {
return UNSAFE.getFloat(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public double readDouble(WordBase offset, LocationIdentity locationIdentity) {
return UNSAFE.getDouble(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public <T extends WordBase> T readWord(WordBase offset, LocationIdentity locationIdentity) {
return box(UNSAFE.getAddress(add((Word) offset).unbox()));
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public native Object readObject(WordBase offset, LocationIdentity locationIdentity);
@Override
@Operation(opcode = Opcode.READ_POINTER)
public byte readByte(int offset, LocationIdentity locationIdentity) {
return readByte(signed(offset), locationIdentity);
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public char readChar(int offset, LocationIdentity locationIdentity) {
return readChar(signed(offset), locationIdentity);
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public short readShort(int offset, LocationIdentity locationIdentity) {
return readShort(signed(offset), locationIdentity);
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public int readInt(int offset, LocationIdentity locationIdentity) {
return readInt(signed(offset), locationIdentity);
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public long readLong(int offset, LocationIdentity locationIdentity) {
return readLong(signed(offset), locationIdentity);
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public float readFloat(int offset, LocationIdentity locationIdentity) {
return readFloat(signed(offset), locationIdentity);
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public double readDouble(int offset, LocationIdentity locationIdentity) {
return readDouble(signed(offset), locationIdentity);
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public <T extends WordBase> T readWord(int offset, LocationIdentity locationIdentity) {
return readWord(signed(offset), locationIdentity);
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public Object readObject(int offset, LocationIdentity locationIdentity) {
return readObject(signed(offset), locationIdentity);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeByte(WordBase offset, byte val, LocationIdentity locationIdentity) {
UNSAFE.putByte(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeChar(WordBase offset, char val, LocationIdentity locationIdentity) {
UNSAFE.putChar(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeShort(WordBase offset, short val, LocationIdentity locationIdentity) {
UNSAFE.putShort(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeInt(WordBase offset, int val, LocationIdentity locationIdentity) {
UNSAFE.putInt(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeLong(WordBase offset, long val, LocationIdentity locationIdentity) {
UNSAFE.putLong(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeFloat(WordBase offset, float val, LocationIdentity locationIdentity) {
UNSAFE.putFloat(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeDouble(WordBase offset, double val, LocationIdentity locationIdentity) {
UNSAFE.putDouble(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeWord(WordBase offset, WordBase val, LocationIdentity locationIdentity) {
UNSAFE.putAddress(add((Word) offset).unbox(), ((Word) val).unbox());
}
@Override
@Operation(opcode = Opcode.INITIALIZE)
public void initializeLong(WordBase offset, long val, LocationIdentity locationIdentity) {
UNSAFE.putLong(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public native void writeObject(WordBase offset, Object val, LocationIdentity locationIdentity);
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeByte(int offset, byte val, LocationIdentity locationIdentity) {
writeByte(signed(offset), val, locationIdentity);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeChar(int offset, char val, LocationIdentity locationIdentity) {
writeChar(signed(offset), val, locationIdentity);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeShort(int offset, short val, LocationIdentity locationIdentity) {
writeShort(signed(offset), val, locationIdentity);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeInt(int offset, int val, LocationIdentity locationIdentity) {
writeInt(signed(offset), val, locationIdentity);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeLong(int offset, long val, LocationIdentity locationIdentity) {
writeLong(signed(offset), val, locationIdentity);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeFloat(int offset, float val, LocationIdentity locationIdentity) {
writeFloat(signed(offset), val, locationIdentity);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeDouble(int offset, double val, LocationIdentity locationIdentity) {
writeDouble(signed(offset), val, locationIdentity);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeWord(int offset, WordBase val, LocationIdentity locationIdentity) {
writeWord(signed(offset), val, locationIdentity);
}
@Override
@Operation(opcode = Opcode.INITIALIZE)
public void initializeLong(int offset, long val, LocationIdentity locationIdentity) {
initializeLong(signed(offset), val, locationIdentity);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeObject(int offset, Object val, LocationIdentity locationIdentity) {
writeObject(signed(offset), val, locationIdentity);
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public byte readByte(WordBase offset) {
return UNSAFE.getByte(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public char readChar(WordBase offset) {
return UNSAFE.getChar(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public short readShort(WordBase offset) {
return UNSAFE.getShort(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public int readInt(WordBase offset) {
return UNSAFE.getInt(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public long readLong(WordBase offset) {
return UNSAFE.getLong(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public float readFloat(WordBase offset) {
return UNSAFE.getFloat(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public double readDouble(WordBase offset) {
return UNSAFE.getDouble(add((Word) offset).unbox());
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public <T extends WordBase> T readWord(WordBase offset) {
return box(UNSAFE.getAddress(add((Word) offset).unbox()));
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public native Object readObject(WordBase offset);
@Operation(opcode = Opcode.READ_HEAP)
public native Object readObject(WordBase offset, BarrierType barrierType);
@Override
@Operation(opcode = Opcode.READ_POINTER)
public byte readByte(int offset) {
return readByte(signed(offset));
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public char readChar(int offset) {
return readChar(signed(offset));
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public short readShort(int offset) {
return readShort(signed(offset));
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public int readInt(int offset) {
return readInt(signed(offset));
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public long readLong(int offset) {
return readLong(signed(offset));
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public float readFloat(int offset) {
return readFloat(signed(offset));
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public double readDouble(int offset) {
return readDouble(signed(offset));
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public <T extends WordBase> T readWord(int offset) {
return readWord(signed(offset));
}
@Override
@Operation(opcode = Opcode.READ_POINTER)
public Object readObject(int offset) {
return readObject(signed(offset));
}
@Operation(opcode = Opcode.READ_HEAP)
public Object readObject(int offset, BarrierType barrierType) {
return readObject(signed(offset), barrierType);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeByte(WordBase offset, byte val) {
UNSAFE.putByte(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeChar(WordBase offset, char val) {
UNSAFE.putChar(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeShort(WordBase offset, short val) {
UNSAFE.putShort(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeInt(WordBase offset, int val) {
UNSAFE.putInt(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeLong(WordBase offset, long val) {
UNSAFE.putLong(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeFloat(WordBase offset, float val) {
UNSAFE.putFloat(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeDouble(WordBase offset, double val) {
UNSAFE.putDouble(add((Word) offset).unbox(), val);
}
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public native int compareAndSwapInt(WordBase offset, int expectedValue, int newValue, LocationIdentity locationIdentity);
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public native long compareAndSwapLong(WordBase offset, long expectedValue, long newValue, LocationIdentity locationIdentity);
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public native <T extends WordBase> T compareAndSwapWord(WordBase offset, T expectedValue, T newValue, LocationIdentity locationIdentity);
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public native Object compareAndSwapObject(WordBase offset, Object expectedValue, Object newValue, LocationIdentity locationIdentity);
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public boolean logicCompareAndSwapInt(WordBase offset, int expectedValue, int newValue, LocationIdentity locationIdentity) {
return UNSAFE.compareAndSwapInt(this.toObject(), ((Word) offset).unbox(), expectedValue, newValue);
}
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public boolean logicCompareAndSwapLong(WordBase offset, long expectedValue, long newValue, LocationIdentity locationIdentity) {
return UNSAFE.compareAndSwapLong(this.toObject(), ((Word) offset).unbox(), expectedValue, newValue);
}
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public native boolean logicCompareAndSwapWord(WordBase offset, WordBase expectedValue, WordBase newValue, LocationIdentity locationIdentity);
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public boolean logicCompareAndSwapObject(WordBase offset, Object expectedValue, Object newValue, LocationIdentity locationIdentity) {
return UNSAFE.compareAndSwapObject(this.toObject(), ((Word) offset).unbox(), expectedValue, newValue);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeWord(WordBase offset, WordBase val) {
UNSAFE.putAddress(add((Word) offset).unbox(), ((Word) val).unbox());
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public native void writeObject(WordBase offset, Object val);
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeByte(int offset, byte val) {
writeByte(signed(offset), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeChar(int offset, char val) {
writeChar(signed(offset), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeShort(int offset, short val) {
writeShort(signed(offset), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeInt(int offset, int val) {
writeInt(signed(offset), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeLong(int offset, long val) {
writeLong(signed(offset), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeFloat(int offset, float val) {
writeFloat(signed(offset), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeDouble(int offset, double val) {
writeDouble(signed(offset), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeWord(int offset, WordBase val) {
writeWord(signed(offset), val);
}
@Override
@Operation(opcode = Opcode.WRITE_POINTER)
public void writeObject(int offset, Object val) {
writeObject(signed(offset), val);
}
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public int compareAndSwapInt(int offset, int expectedValue, int newValue, LocationIdentity locationIdentity) {
return compareAndSwapInt(signed(offset), expectedValue, newValue, locationIdentity);
}
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public long compareAndSwapLong(int offset, long expectedValue, long newValue, LocationIdentity locationIdentity) {
return compareAndSwapLong(signed(offset), expectedValue, newValue, locationIdentity);
}
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public <T extends WordBase> T compareAndSwapWord(int offset, T expectedValue, T newValue, LocationIdentity locationIdentity) {
return compareAndSwapWord(signed(offset), expectedValue, newValue, locationIdentity);
}
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public Object compareAndSwapObject(int offset, Object expectedValue, Object newValue, LocationIdentity locationIdentity) {
return compareAndSwapObject(signed(offset), expectedValue, newValue, locationIdentity);
}
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public boolean logicCompareAndSwapInt(int offset, int expectedValue, int newValue, LocationIdentity locationIdentity) {
return logicCompareAndSwapInt(signed(offset), expectedValue, newValue, locationIdentity);
}
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public boolean logicCompareAndSwapLong(int offset, long expectedValue, long newValue, LocationIdentity locationIdentity) {
return logicCompareAndSwapLong(signed(offset), expectedValue, newValue, locationIdentity);
}
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public boolean logicCompareAndSwapWord(int offset, WordBase expectedValue, WordBase newValue, LocationIdentity locationIdentity) {
return logicCompareAndSwapWord(signed(offset), expectedValue, newValue, locationIdentity);
}
@Override
@Operation(opcode = Opcode.CAS_POINTER)
public boolean logicCompareAndSwapObject(int offset, Object expectedValue, Object newValue, LocationIdentity locationIdentity) {
return logicCompareAndSwapObject(signed(offset), expectedValue, newValue, locationIdentity);
}
/**
* This is deprecated because of the easy to mistype name collision between {@link #equals} and
* the other equals routines like {@link #equal(Word)}. In general you should never be
* statically calling this method for Word types.
*/
@SuppressWarnings("deprecation")
@Deprecated
@Override
public final boolean equals(Object obj) {
throw GraalError.shouldNotReachHere("equals must not be called on words");
}
@Override
public final int hashCode() {
throw GraalError.shouldNotReachHere("hashCode must not be called on words");
}
@Override
public String toString() {
throw GraalError.shouldNotReachHere("toString must not be called on words");
}
}
final class HostedWord extends Word {
private static final int SMALL_FROM = -1;
private static final int SMALL_TO = 100;
private static final HostedWord[] smallCache = new HostedWord[SMALL_TO - SMALL_FROM + 1];
static {
for (int i = SMALL_FROM; i <= SMALL_TO; i++) {
smallCache[i - SMALL_FROM] = new HostedWord(i);
}
}
private final long rawValue;
private HostedWord(long rawValue) {
this.rawValue = rawValue;
}
protected static Word boxLong(long val) {
if (val >= SMALL_FROM && val <= SMALL_TO) {
return smallCache[(int) val - SMALL_FROM];
}
return new HostedWord(val);
}
@Override
protected long unbox() {
return rawValue;
}
@Override
public String toString() {
return "Word<" + rawValue + ">";
}
}