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view graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/IncrementalCanonicalizerPhase.java @ 13175:85b60abfd11f
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author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Mon, 25 Nov 2013 15:31:20 -0800 |
parents | ca8ab182026f |
children | 79298b99df02 |
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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.phases.common; import java.util.*; import com.oracle.graal.graph.Graph.Mark; import com.oracle.graal.graph.Graph.NodeChangedListener; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; import com.oracle.graal.phases.*; import com.oracle.graal.phases.tiers.*; /** * A phase suite that applies {@linkplain CanonicalizerPhase canonicalization} to a graph after all * phases in the suite have been applied if any of the phases changed the graph. */ public class IncrementalCanonicalizerPhase<C extends PhaseContext> extends PhaseSuite<C> { private final CanonicalizerPhase canonicalizer; public IncrementalCanonicalizerPhase(CanonicalizerPhase canonicalizer) { this.canonicalizer = canonicalizer; } @Override protected void run(StructuredGraph graph, C context) { Mark newNodesMark = graph.getMark(); final Set<Node> changedNodes = new HashSet<>(); NodeChangedListener listener = new NodeChangedListener() { @Override public void nodeChanged(Node node) { changedNodes.add(node); } }; graph.trackInputChange(listener); graph.trackUsagesDroppedZero(listener); super.run(graph, context); graph.stopTrackingInputChange(); graph.stopTrackingUsagesDroppedZero(); if (graph.getMark() != newNodesMark || !changedNodes.isEmpty()) { canonicalizer.applyIncremental(graph, context, changedNodes, newNodesMark, false); } } }