Mercurial > hg > truffle
view graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/phases/LowTier.java @ 19714:b503dd4e723c
Perform full schedule for conditional elimination only in a phase where floating guards are available.
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
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date | Mon, 09 Mar 2015 12:03:48 +0100 |
parents | 2fd45bb25118 |
children | b1530a6cce8c |
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/* * Copyright (c) 2013, 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 com.oracle.graal.compiler.phases; import static com.oracle.graal.compiler.common.GraalOptions.*; import static com.oracle.graal.phases.common.DeadCodeEliminationPhase.Optionality.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.options.*; import com.oracle.graal.phases.*; import com.oracle.graal.phases.common.*; import com.oracle.graal.phases.tiers.*; public class LowTier extends PhaseSuite<LowTierContext> { static class Options { // @formatter:off @Option(help = "", type = OptionType.Debug) public static final OptionValue<Boolean> 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)); appendPhase(new RemoveValueProxyPhase()); appendPhase(new ExpandLogicPhase()); /* Cleanup IsNull checks resulting from MID_TIER/LOW_TIER lowering and ExpandLogic phase. */ if (ConditionalElimination.getValue() && OptCanonicalizer.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)); } }