1 /* 2 * Copyright (c) 2009, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package jdk.vm.ci.code; 24 25 import jdk.vm.ci.meta.AllocatableValue; 26 import jdk.vm.ci.meta.ValueKind; 27 28 /** 29 * Denotes a register that stores a value of a fixed kind. 30 */ 31 public final class RegisterValue extends AllocatableValue { 32 33 private final Register reg; 34 RegisterValue(ValueKind<?> kind, Register register)35 protected RegisterValue(ValueKind<?> kind, Register register) { 36 super(kind); 37 this.reg = register; 38 } 39 40 @Override toString()41 public String toString() { 42 return getRegister().name + getKindSuffix(); 43 } 44 45 /** 46 * @return the register that contains the value 47 */ getRegister()48 public Register getRegister() { 49 return reg; 50 } 51 52 @Override hashCode()53 public int hashCode() { 54 return 29 * super.hashCode() + reg.hashCode(); 55 } 56 57 @Override equals(Object obj)58 public boolean equals(Object obj) { 59 if (obj instanceof RegisterValue) { 60 RegisterValue other = (RegisterValue) obj; 61 return super.equals(obj) && reg.equals(other.reg); 62 } 63 return false; 64 } 65 } 66