001/* 002 * Copyright (c) 2011, 2012, 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.hotspot.meta; 024 025import jdk.internal.jvmci.code.*; 026 027public class HotSpotRegisters implements HotSpotRegistersProvider { 028 029 private final Register threadRegister; 030 private final Register heapBaseRegister; 031 private final Register stackPointerRegister; 032 033 public HotSpotRegisters(Register threadRegister, Register heapBaseRegister, Register stackPointerRegister) { 034 this.threadRegister = threadRegister; 035 this.heapBaseRegister = heapBaseRegister; 036 this.stackPointerRegister = stackPointerRegister; 037 } 038 039 public Register getThreadRegister() { 040 assert !threadRegister.equals(Register.None) : "thread register is not defined"; 041 return threadRegister; 042 } 043 044 public Register getHeapBaseRegister() { 045 assert !heapBaseRegister.equals(Register.None) : "heap base register is not defined"; 046 return heapBaseRegister; 047 } 048 049 public Register getStackPointerRegister() { 050 assert !stackPointerRegister.equals(Register.None) : "stack pointer register is not defined"; 051 return stackPointerRegister; 052 } 053}