1 /* 2 * Copyright (c) 2013, 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.phases.common; 24 25 import org.graalvm.compiler.graph.Graph.NodeEventScope; 26 import org.graalvm.compiler.nodes.StructuredGraph; 27 import org.graalvm.compiler.phases.BasePhase; 28 import org.graalvm.compiler.phases.PhaseSuite; 29 import org.graalvm.compiler.phases.common.util.HashSetNodeEventListener; 30 import org.graalvm.compiler.phases.tiers.PhaseContext; 31 32 /** 33 * A phase suite that applies {@linkplain CanonicalizerPhase canonicalization} to a graph after all 34 * phases in the suite have been applied if any of the phases changed the graph. 35 */ 36 public class IncrementalCanonicalizerPhase<C extends PhaseContext> extends PhaseSuite<C> { 37 38 private final CanonicalizerPhase canonicalizer; 39 40 public IncrementalCanonicalizerPhase(CanonicalizerPhase canonicalizer) { 41 this.canonicalizer = canonicalizer; 42 } 43 44 public IncrementalCanonicalizerPhase(CanonicalizerPhase canonicalizer, BasePhase<? super C> phase) { 45 this.canonicalizer = canonicalizer; 46 appendPhase(phase); 47 } 48 49 @Override 50 @SuppressWarnings("try") 51 protected void run(StructuredGraph graph, C context) { 52 HashSetNodeEventListener listener = new HashSetNodeEventListener(); 53 try (NodeEventScope nes = graph.trackNodeEvents(listener)) { 54 super.run(graph, context); 55 } 56 57 if (!listener.getNodes().isEmpty()) { 58 canonicalizer.applyIncremental(graph, context, listener.getNodes(), null, false); 59 } 60 } 61 }