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.mir2mc;
014
015import org.jikesrvm.VM;
016import org.jikesrvm.compilers.opt.OptOptions;
017import org.jikesrvm.compilers.opt.driver.CompilerPhase;
018import org.jikesrvm.compilers.opt.ir.IR;
019
020/**
021 * A compiler phase that drives final MIR expansion.
022 */
023final class FinalMIRExpansionDriver extends CompilerPhase {
024  @Override
025  public String getName() {
026    return "Final MIR Expansion";
027  }
028
029  @Override
030  public boolean printingEnabled(OptOptions options, boolean before) {
031    return !before && options.PRINT_FINAL_MIR;
032  }
033
034  // this class has no instance fields.
035  @Override
036  public CompilerPhase newExecution(IR ir) {
037    return this;
038  }
039
040  @Override
041  public void perform(IR ir) {
042    if (IR.SANITY_CHECK) {
043      ir.verify("right before Final MIR Expansion", true);
044    }
045
046    ir.MIRInfo.mcOffsets = new MachineCodeOffsets();
047    if (VM.BuildForIA32) {
048      ir.MIRInfo.mcSizeEstimate = org.jikesrvm.compilers.opt.mir2mc.ia32.FinalMIRExpansion.expand(ir);
049    } else {
050      if (VM.VerifyAssertions) VM._assert(VM.BuildForPowerPC);
051      ir.MIRInfo.mcSizeEstimate = org.jikesrvm.compilers.opt.mir2mc.ppc.FinalMIRExpansion.expand(ir);;
052    }
053  }
054}