1 /* 2 * Copyright (c) 2011, 2012, 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 org.graalvm.compiler.hotspot.meta; 24 25 import jdk.vm.ci.code.Register; 26 27 public class HotSpotRegisters implements HotSpotRegistersProvider { 28 29 private final Register threadRegister; 30 private final Register heapBaseRegister; 31 private final Register stackPointerRegister; 32 33 public HotSpotRegisters(Register threadRegister, Register heapBaseRegister, Register stackPointerRegister) { 34 this.threadRegister = threadRegister; 35 this.heapBaseRegister = heapBaseRegister; 36 this.stackPointerRegister = stackPointerRegister; 37 } 38 39 @Override 40 public Register getThreadRegister() { 41 assert !threadRegister.equals(Register.None) : "thread register is not defined"; 42 return threadRegister; 43 } 44 45 @Override 46 public Register getHeapBaseRegister() { 47 assert !heapBaseRegister.equals(Register.None) : "heap base register is not defined"; 48 return heapBaseRegister; 49 } 50 51 @Override 52 public Register getStackPointerRegister() { 53 assert !stackPointerRegister.equals(Register.None) : "stack pointer register is not defined"; 54 return stackPointerRegister; 55 } 56 }