1 /* 2 * Copyright (c) 2012, 2016, 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.hotspot.nodes; 24 25 import static org.graalvm.compiler.nodeinfo.InputType.Memory; 26 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_0; 27 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_0; 28 29 import org.graalvm.compiler.core.common.LocationIdentity; 30 import org.graalvm.compiler.core.common.type.StampFactory; 31 import org.graalvm.compiler.graph.NodeClass; 32 import org.graalvm.compiler.nodeinfo.NodeInfo; 33 import org.graalvm.compiler.nodes.extended.MonitorExit; 34 import org.graalvm.compiler.nodes.memory.AbstractMemoryCheckpoint; 35 import org.graalvm.compiler.nodes.memory.MemoryCheckpoint; 36 import org.graalvm.compiler.nodes.spi.LIRLowerable; 37 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; 38 39 /** 40 * Intrinsic for closing a {@linkplain BeginLockScopeNode scope} binding a stack-based lock with an 41 * object. 42 */ 43 @NodeInfo(allowedUsageTypes = Memory, cycles = CYCLES_0, size = SIZE_0) 44 public final class EndLockScopeNode extends AbstractMemoryCheckpoint implements LIRLowerable, MonitorExit, MemoryCheckpoint.Single { 45 public static final NodeClass<EndLockScopeNode> TYPE = NodeClass.create(EndLockScopeNode.class); 46 47 public EndLockScopeNode() { 48 super(TYPE, StampFactory.forVoid()); 49 } 50 51 @Override 52 public boolean hasSideEffect() { 53 return false; 54 } 55 56 @Override 57 public LocationIdentity getLocationIdentity() { 58 return LocationIdentity.any(); 59 } 60 61 @Override 62 public void generate(NodeLIRBuilderTool gen) { 63 } 64 65 @NodeIntrinsic 66 public static native void endLockScope(); 67 }