001/*
002 *  This file is part of the Jikes RVM project (http://jikesrvm.org).
003 *
004 *  This file is licensed to You under the Eclipse Public License (EPL);
005 *  You may not use this file except in compliance with the License. You
006 *  may obtain a copy of the License at
007 *
008 *      http://www.opensource.org/licenses/eclipse-1.0.php
009 *
010 *  See the COPYRIGHT.txt file distributed with this work for information
011 *  regarding copyright ownership.
012 */
013package org.jikesrvm.compilers.opt.regalloc;
014
015import org.jikesrvm.compilers.opt.driver.CompilerPhase;
016import org.jikesrvm.compilers.opt.ir.IR;
017
018/**
019 * This class is a phase that inserts prologues and epilogues
020 */
021public final class PrologueEpilogueCreator extends CompilerPhase {
022
023  /**
024   * Return this instance of this phase. This phase contains no
025   * per-compilation instance fields.
026   * @param ir not used
027   * @return this
028   */
029  @Override
030  public CompilerPhase newExecution(IR ir) {
031    return this;
032  }
033
034  @Override
035  public String getName() {
036    return "Insert Prologue/Epilogue";
037  }
038
039  /**
040   *  Insert the prologue and epilogue
041   */
042  @Override
043  public void perform(IR ir) {
044    ir.stackManager.insertPrologueAndEpilogue();
045  }
046}