Mercurial > hg > truffle
view graal/com.oracle.graal.virtual/src/com/oracle/graal/virtual/phases/ea/PartialEscapePhase.java @ 21554:b1530a6cce8c
renamed com.oracle.graal.[debug|options|hotspotvmconfig]* modules to com.oracle.jvmci.[debug|options|hotspotvmconfig]* modules (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Tue, 26 May 2015 23:21:15 +0200 |
parents | 745e0fbcbdaf |
children |
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/* * Copyright (c) 2011, 2012, 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.virtual.phases.ea; import static com.oracle.graal.compiler.common.GraalOptions.*; import static com.oracle.graal.virtual.phases.ea.PartialEscapePhase.Options.*; import java.util.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.nodes.cfg.*; import com.oracle.graal.nodes.spi.*; import com.oracle.graal.phases.*; import com.oracle.graal.phases.common.*; import com.oracle.graal.phases.schedule.*; import com.oracle.graal.phases.tiers.*; import com.oracle.jvmci.options.*; public class PartialEscapePhase extends EffectsPhase<PhaseContext> { static class Options { //@formatter:off @Option(help = "", type = OptionType.Debug) public static final OptionValue<Boolean> OptEarlyReadElimination = new OptionValue<>(true); //@formatter:on } private final boolean readElimination; private final BasePhase<PhaseContext> cleanupPhase; public PartialEscapePhase(boolean iterative, CanonicalizerPhase canonicalizer) { this(iterative, OptEarlyReadElimination.getValue(), canonicalizer, null); } public PartialEscapePhase(boolean iterative, CanonicalizerPhase canonicalizer, BasePhase<PhaseContext> cleanupPhase) { this(iterative, OptEarlyReadElimination.getValue(), canonicalizer, cleanupPhase); } public PartialEscapePhase(boolean iterative, boolean readElimination, CanonicalizerPhase canonicalizer, BasePhase<PhaseContext> cleanupPhase) { super(iterative ? EscapeAnalysisIterations.getValue() : 1, canonicalizer); this.readElimination = readElimination; this.cleanupPhase = cleanupPhase; } @Override protected void postIteration(StructuredGraph graph, PhaseContext context, Set<Node> changedNodes) { super.postIteration(graph, context, changedNodes); if (cleanupPhase != null) { cleanupPhase.apply(graph, context); } } @Override protected void run(StructuredGraph graph, PhaseContext context) { if (VirtualUtil.matches(graph, EscapeAnalyzeOnly.getValue())) { if (readElimination || graph.getNodes().filterInterface(VirtualizableAllocation.class).isNotEmpty()) { runAnalysis(graph, context); } } } @Override protected Closure<?> createEffectsClosure(PhaseContext context, SchedulePhase schedule, ControlFlowGraph cfg) { assert schedule != null; if (readElimination) { return new PEReadEliminationClosure(schedule, context.getMetaAccess(), context.getConstantReflection()); } else { return new PartialEscapeClosure.Final(schedule, context.getMetaAccess(), context.getConstantReflection()); } } }