1 /* 2 * Copyright (c) 2013, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.core.phases; 24 25 import static org.graalvm.compiler.core.common.GraalOptions.ConditionalElimination; 26 import static org.graalvm.compiler.core.common.GraalOptions.ImmutableCode; 27 import static org.graalvm.compiler.core.common.GraalOptions.OptDeoptimizationGrouping; 28 import static org.graalvm.compiler.core.common.GraalOptions.OptFloatingReads; 29 import static org.graalvm.compiler.core.common.GraalOptions.OptLoopTransform; 30 import static org.graalvm.compiler.core.common.GraalOptions.PartialUnroll; 31 import static org.graalvm.compiler.core.common.GraalOptions.ReassociateInvariants; 32 import static org.graalvm.compiler.core.common.GraalOptions.VerifyHeapAtReturn; 33 34 import org.graalvm.compiler.loop.DefaultLoopPolicies; 35 import org.graalvm.compiler.loop.LoopPolicies; 36 import org.graalvm.compiler.loop.phases.LoopPartialUnrollPhase; 37 import org.graalvm.compiler.loop.phases.LoopSafepointEliminationPhase; 38 import org.graalvm.compiler.loop.phases.ReassociateInvariantPhase; 39 import org.graalvm.compiler.nodes.spi.LoweringTool; 40 import org.graalvm.compiler.options.OptionValues; 41 import org.graalvm.compiler.phases.PhaseSuite; 42 import org.graalvm.compiler.phases.common.CanonicalizerPhase; 43 import org.graalvm.compiler.phases.common.DeoptimizationGroupingPhase; 44 import org.graalvm.compiler.phases.common.FloatingReadPhase; 45 import org.graalvm.compiler.phases.common.FrameStateAssignmentPhase; 46 import org.graalvm.compiler.phases.common.GuardLoweringPhase; 47 import org.graalvm.compiler.phases.common.IncrementalCanonicalizerPhase; 48 import org.graalvm.compiler.phases.common.IterativeConditionalEliminationPhase; 49 import org.graalvm.compiler.phases.common.LockEliminationPhase; 50 import org.graalvm.compiler.phases.common.LoopSafepointInsertionPhase; 51 import org.graalvm.compiler.phases.common.LoweringPhase; 52 import org.graalvm.compiler.phases.common.VerifyHeapAtReturnPhase; 53 import org.graalvm.compiler.phases.tiers.MidTierContext; 54 55 public class MidTier extends PhaseSuite<MidTierContext> { 56 57 public MidTier(OptionValues options) { 58 CanonicalizerPhase canonicalizer = new CanonicalizerPhase(); 59 if (ImmutableCode.getValue(options)) { 60 canonicalizer.disableReadCanonicalization(); 61 } 62 63 appendPhase(new LockEliminationPhase()); 64 65 if (OptFloatingReads.getValue(options)) { 66 appendPhase(new IncrementalCanonicalizerPhase<>(canonicalizer, new FloatingReadPhase())); 67 } 68 69 if (ConditionalElimination.getValue(options)) { 70 appendPhase(new IterativeConditionalEliminationPhase(canonicalizer, true)); 71 } 72 73 appendPhase(new LoopSafepointEliminationPhase()); 74 75 appendPhase(new LoopSafepointInsertionPhase()); 76 77 appendPhase(new GuardLoweringPhase()); 78 79 if (VerifyHeapAtReturn.getValue(options)) { 80 appendPhase(new VerifyHeapAtReturnPhase()); 81 } 82 83 appendPhase(new LoweringPhase(canonicalizer, LoweringTool.StandardLoweringStage.MID_TIER)); 84 85 appendPhase(new FrameStateAssignmentPhase()); 86 87 LoopPolicies loopPolicies = createLoopPolicies(); 88 if (OptLoopTransform.getValue(options)) { 89 if (PartialUnroll.getValue(options)) { 90 appendPhase(new LoopPartialUnrollPhase(loopPolicies, canonicalizer)); 91 } 92 } 93 if (ReassociateInvariants.getValue(options)) { 94 appendPhase(new ReassociateInvariantPhase()); 95 } 96 97 if (OptDeoptimizationGrouping.getValue(options)) { 98 appendPhase(new DeoptimizationGroupingPhase()); 99 } 100 101 appendPhase(canonicalizer); 102 } 103 104 public LoopPolicies createLoopPolicies() { 105 return new DefaultLoopPolicies(); 106 } 107 }