001/*
002 * Copyright (c) 2013, 2015, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.lir.sparc;
024
025import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*;
026import static jdk.internal.jvmci.code.ValueUtil.*;
027
028import java.util.*;
029
030import jdk.internal.jvmci.meta.*;
031
032import com.oracle.graal.asm.sparc.*;
033import com.oracle.graal.lir.*;
034import com.oracle.graal.lir.LIRInstruction.OperandFlag;
035import com.oracle.graal.lir.LIRInstruction.OperandMode;
036
037public final class SPARCIndexedAddressValue extends SPARCAddressValue {
038
039    @Component({REG}) protected AllocatableValue base;
040    @Component({REG}) protected AllocatableValue index;
041
042    private static final EnumSet<OperandFlag> flags = EnumSet.of(OperandFlag.REG);
043
044    public SPARCIndexedAddressValue(LIRKind kind, AllocatableValue base, AllocatableValue index) {
045        super(kind);
046        this.base = base;
047        this.index = index;
048    }
049
050    @Override
051    public CompositeValue forEachComponent(LIRInstruction inst, OperandMode mode, InstructionValueProcedure proc) {
052        AllocatableValue newBase = (AllocatableValue) proc.doValue(inst, base, mode, flags);
053        AllocatableValue newIndex = (AllocatableValue) proc.doValue(inst, index, mode, flags);
054        if (!base.identityEquals(newBase) || !index.identityEquals(newIndex)) {
055            return new SPARCIndexedAddressValue(getLIRKind(), newBase, newIndex);
056        }
057        return this;
058    }
059
060    @Override
061    protected void forEachComponent(LIRInstruction inst, OperandMode mode, InstructionValueConsumer proc) {
062        proc.visitValue(inst, base, mode, flags);
063        proc.visitValue(inst, index, mode, flags);
064    }
065
066    @Override
067    public SPARCAddress toAddress() {
068        return new SPARCAddress(asRegister(base), asRegister(index));
069    }
070
071    @Override
072    public boolean isValidImplicitNullCheckFor(Value value, int implicitNullCheckLimit) {
073        return false;
074    }
075
076    @Override
077    public String toString() {
078        StringBuilder s = new StringBuilder("[");
079        String sep = "";
080        if (isLegal(base)) {
081            s.append(base);
082            sep = " + ";
083        }
084        if (isLegal(index)) {
085            s.append(sep).append(index);
086        }
087        s.append("]");
088        return s.toString();
089    }
090
091    @Override
092    public boolean equals(Object obj) {
093        if (obj instanceof SPARCIndexedAddressValue) {
094            SPARCIndexedAddressValue addr = (SPARCIndexedAddressValue) obj;
095            return getLIRKind().equals(addr.getLIRKind()) && base.equals(addr.base) && index.equals(addr.index);
096        }
097        return false;
098    }
099
100    @Override
101    public int hashCode() {
102        return base.hashCode() ^ index.hashCode() ^ getLIRKind().hashCode();
103    }
104}