001/*
002 * Copyright (c) 2013, 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.compiler.phases;
024
025import static com.oracle.graal.compiler.common.GraalOptions.*;
026
027import com.oracle.graal.loop.phases.*;
028import com.oracle.graal.nodes.spi.*;
029import com.oracle.graal.phases.*;
030import com.oracle.graal.phases.common.*;
031import com.oracle.graal.phases.tiers.*;
032import com.oracle.graal.virtual.phases.ea.*;
033
034public class MidTier extends PhaseSuite<MidTierContext> {
035
036    public MidTier() {
037        CanonicalizerPhase canonicalizer = new CanonicalizerPhase();
038        if (ImmutableCode.getValue()) {
039            canonicalizer.disableReadCanonicalization();
040        }
041
042        if (OptPushThroughPi.getValue()) {
043            appendPhase(new PushThroughPiPhase());
044        }
045        if (OptCanonicalizer.getValue()) {
046            appendPhase(canonicalizer);
047        }
048
049        appendPhase(new ValueAnchorCleanupPhase());
050        appendPhase(new LockEliminationPhase());
051
052        if (OptReadElimination.getValue()) {
053            appendPhase(new EarlyReadEliminationPhase(canonicalizer));
054        }
055
056        if (OptFloatingReads.getValue()) {
057            appendPhase(new IncrementalCanonicalizerPhase<>(canonicalizer, new FloatingReadPhase()));
058        }
059        appendPhase(new RemoveValueProxyPhase());
060
061        if (OptCanonicalizer.getValue()) {
062            appendPhase(canonicalizer);
063        }
064
065        if (OptEliminatePartiallyRedundantGuards.getValue()) {
066            appendPhase(new OptimizeGuardAnchorsPhase());
067        }
068
069        if (ConditionalElimination.getValue() && OptCanonicalizer.getValue()) {
070            appendPhase(new IterativeConditionalEliminationPhase(canonicalizer, true));
071        }
072
073        if (OptEliminatePartiallyRedundantGuards.getValue()) {
074            appendPhase(new OptimizeGuardAnchorsPhase());
075        }
076
077        if (OptCanonicalizer.getValue()) {
078            appendPhase(canonicalizer);
079        }
080
081        appendPhase(new IncrementalCanonicalizerPhase<>(canonicalizer, new LoopSafepointEliminationPhase()));
082
083        appendPhase(new LoopSafepointInsertionPhase());
084
085        appendPhase(new IncrementalCanonicalizerPhase<>(canonicalizer, new GuardLoweringPhase()));
086
087        if (VerifyHeapAtReturn.getValue()) {
088            appendPhase(new VerifyHeapAtReturnPhase());
089        }
090
091        appendPhase(new LoweringPhase(canonicalizer, LoweringTool.StandardLoweringStage.MID_TIER));
092
093        appendPhase(new FrameStateAssignmentPhase());
094
095        if (ReassociateInvariants.getValue()) {
096            appendPhase(new ReassociateInvariantPhase());
097        }
098
099        if (OptDeoptimizationGrouping.getValue()) {
100            appendPhase(new DeoptimizationGroupingPhase());
101        }
102
103        if (OptCanonicalizer.getValue()) {
104            appendPhase(canonicalizer);
105        }
106    }
107}