/* * Copyright (c) 2013, 2016, 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. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package org.graalvm.compiler.core.phases; import static org.graalvm.compiler.core.common.GraalOptions.ConditionalElimination; import static org.graalvm.compiler.core.common.GraalOptions.ImmutableCode; import static org.graalvm.compiler.core.common.GraalOptions.UseGraalInstrumentation; import static org.graalvm.compiler.phases.common.DeadCodeEliminationPhase.Optionality.Required; import org.graalvm.compiler.nodes.spi.LoweringTool; import org.graalvm.compiler.options.Option; import org.graalvm.compiler.options.OptionType; import org.graalvm.compiler.options.OptionValue; import org.graalvm.compiler.phases.PhaseSuite; import org.graalvm.compiler.phases.common.CanonicalizerPhase; import org.graalvm.compiler.phases.common.DeadCodeEliminationPhase; import org.graalvm.compiler.phases.common.ExpandLogicPhase; import org.graalvm.compiler.phases.common.IterativeConditionalEliminationPhase; import org.graalvm.compiler.phases.common.LoweringPhase; import org.graalvm.compiler.phases.common.ProfileCompiledMethodsPhase; import org.graalvm.compiler.phases.common.RemoveValueProxyPhase; import org.graalvm.compiler.phases.common.UseTrappingNullChecksPhase; import org.graalvm.compiler.phases.common.instrumentation.InlineInstrumentationPhase; import org.graalvm.compiler.phases.schedule.SchedulePhase; import org.graalvm.compiler.phases.tiers.LowTierContext; public class LowTier extends PhaseSuite { static class Options { // @formatter:off @Option(help = "", type = OptionType.Debug) public static final OptionValue ProfileCompiledMethods = new OptionValue<>(false); // @formatter:on } public LowTier() { CanonicalizerPhase canonicalizer = new CanonicalizerPhase(); if (ImmutableCode.getValue()) { canonicalizer.disableReadCanonicalization(); } if (Options.ProfileCompiledMethods.getValue()) { appendPhase(new ProfileCompiledMethodsPhase()); } appendPhase(new LoweringPhase(canonicalizer, LoweringTool.StandardLoweringStage.LOW_TIER)); if (UseGraalInstrumentation.getValue()) { appendPhase(new InlineInstrumentationPhase()); } appendPhase(new RemoveValueProxyPhase()); appendPhase(new ExpandLogicPhase()); /* Cleanup IsNull checks resulting from MID_TIER/LOW_TIER lowering and ExpandLogic phase. */ if (ConditionalElimination.getValue()) { appendPhase(new IterativeConditionalEliminationPhase(canonicalizer, false)); /* Canonicalizer may create some new ShortCircuitOrNodes so clean them up. */ appendPhase(new ExpandLogicPhase()); } appendPhase(new UseTrappingNullChecksPhase()); appendPhase(new DeadCodeEliminationPhase(Required)); appendPhase(new SchedulePhase(SchedulePhase.SchedulingStrategy.FINAL_SCHEDULE)); } }