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 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package com.oracle.graal.lir.phases;

import com.oracle.graal.api.code.*;
import com.oracle.graal.lir.*;
import com.oracle.graal.lir.gen.*;
import com.oracle.graal.lir.phases.LowLevelHighTierPhase.LowLevelHighTierContext;
import com.oracle.graal.lir.phases.LowLevelLowTierPhase.LowLevelLowTierContext;
import com.oracle.graal.lir.phases.LowLevelMidTierPhase.LowLevelMidTierContext;

public class LIRSuites {

    private final LowLevelPhaseSuite<LowLevelHighTierContext> highTier;
    private final LowLevelPhaseSuite<LowLevelMidTierContext> midTier;
    private final LowLevelPhaseSuite<LowLevelLowTierContext> lowTier;

    public LIRSuites(LowLevelPhaseSuite<LowLevelHighTierContext> highTier, LowLevelPhaseSuite<LowLevelMidTierContext> midTier, LowLevelPhaseSuite<LowLevelLowTierContext> lowTier) {
        this.highTier = highTier;
        this.midTier = midTier;
        this.lowTier = lowTier;
    }

    /**
     * {@link LowLevelHighTierPhase}s are executed between {@link LIR} generation and register
     * allocation.
     * <p>
     * {@link LowLevelHighTierPhase Implementers} can create new
     * {@link LIRGeneratorTool#newVariable variables}, {@link LIRGenerationResult#getFrameMap stack
     * slots} and {@link LIRGenerationResult#getFrameMapBuilder virtual stack slots}.
     */
    public LowLevelPhaseSuite<LowLevelHighTierContext> getHighTier() {
        return highTier;
    }

    /**
     * {@link LowLevelMidTierPhase}s are responsible for register allocation and translating
     * {@link VirtualStackSlot}s into {@link StackSlot}s.
     * <p>
     * After the {@link LowLevelMidTier} there should be no more {@link Variable}s and
     * {@link VirtualStackSlot}s.
     */
    public LowLevelPhaseSuite<LowLevelMidTierContext> getMidTier() {
        return midTier;
    }

    /**
     * {@link LowLevelLowTierPhase}s are executed after register allocation and before machine code
     * generation.
     * <p>
     * A {@link LowLevelLowTierPhase} must not introduce new {@link Variable}s,
     * {@link VirtualStackSlot}s or {@link StackSlot}s.
     */
    public LowLevelPhaseSuite<LowLevelLowTierContext> getLowTier() {
        return lowTier;
    }

}