| /* |
| * Copyright (c) 2015, 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.phases.common.instrumentation; |
| |
| import org.graalvm.compiler.nodes.StructuredGraph; |
| import org.graalvm.compiler.nodes.ValueNode; |
| import org.graalvm.compiler.nodes.debug.instrumentation.InstrumentationNode; |
| import org.graalvm.compiler.nodes.debug.instrumentation.MonitorProxyNode; |
| import org.graalvm.compiler.nodes.extended.FixedValueAnchorNode; |
| import org.graalvm.compiler.nodes.java.RawMonitorEnterNode; |
| import org.graalvm.compiler.nodes.util.GraphUtil; |
| import org.graalvm.compiler.phases.Phase; |
| |
| /** |
| * The {@code MidTierReconcileInstrumentationPhase} reconciles the InstrumentationNodes right after |
| * lowering in the mid tier. Concretely, it attempts to unproxify the targets of the |
| * InstrumentationNodes. |
| */ |
| public class MidTierReconcileInstrumentationPhase extends Phase { |
| |
| @Override |
| protected void run(StructuredGraph graph) { |
| for (InstrumentationNode instrumentationNode : graph.getNodes().filter(InstrumentationNode.class)) { |
| ValueNode target = instrumentationNode.getTarget(); |
| if (target instanceof MonitorProxyNode) { |
| RawMonitorEnterNode monitorEnter = ((MonitorProxyNode) target).findFirstMatch(); |
| if (monitorEnter != null) { |
| instrumentationNode.replaceFirstInput(target, monitorEnter); |
| } else { |
| // we cannot find valid AccessMonitorNode for the proxy, detach the |
| // instrumentation |
| graph.removeFixed(instrumentationNode); |
| } |
| } else if (target instanceof FixedValueAnchorNode) { |
| instrumentationNode.replaceFirstInput(target, GraphUtil.unproxify(target)); |
| } |
| } |
| } |
| |
| @Override |
| public boolean checkContract() { |
| return false; |
| } |
| } |