1 /* 2 * Copyright (c) 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.aot; 24 25 import static org.graalvm.compiler.nodeinfo.NodeCycles.CYCLES_3; 26 import static org.graalvm.compiler.nodeinfo.NodeSize.SIZE_3; 27 28 import org.graalvm.compiler.core.common.PermanentBailoutException; 29 import org.graalvm.compiler.graph.Node; 30 import org.graalvm.compiler.graph.NodeClass; 31 import org.graalvm.compiler.graph.spi.Canonicalizable; 32 import org.graalvm.compiler.graph.spi.CanonicalizerTool; 33 import org.graalvm.compiler.hotspot.HotSpotLIRGenerator; 34 import org.graalvm.compiler.hotspot.meta.HotSpotConstantLoadAction; 35 import org.graalvm.compiler.hotspot.nodes.type.MethodCountersPointerStamp; 36 import org.graalvm.compiler.hotspot.word.MethodCountersPointer; 37 import org.graalvm.compiler.hotspot.word.MethodPointer; 38 import org.graalvm.compiler.nodeinfo.NodeInfo; 39 import org.graalvm.compiler.nodes.ValueNode; 40 import org.graalvm.compiler.nodes.calc.FloatingNode; 41 import org.graalvm.compiler.nodes.spi.LIRLowerable; 42 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; 43 import org.graalvm.compiler.nodes.util.GraphUtil; 44 45 import jdk.vm.ci.hotspot.HotSpotMetaspaceConstant; 46 import jdk.vm.ci.meta.Constant; 47 import jdk.vm.ci.meta.Value; 48 49 @NodeInfo(cycles = CYCLES_3, size = SIZE_3) 50 public class LoadMethodCountersIndirectlyNode extends FloatingNode implements Canonicalizable, LIRLowerable { 51 52 public static final NodeClass<LoadMethodCountersIndirectlyNode> TYPE = NodeClass.create(LoadMethodCountersIndirectlyNode.class); 53 54 @OptionalInput protected ValueNode value; 55 protected Constant constant; 56 57 public LoadMethodCountersIndirectlyNode(ValueNode value) { 58 super(TYPE, MethodCountersPointerStamp.methodCounters()); 59 this.value = value; 60 this.constant = null; 61 } 62 63 @Override 64 public Node canonical(CanonicalizerTool tool) { 65 if (value != null) { 66 constant = GraphUtil.foldIfConstantAndRemove(this, value); 67 } 68 return this; 69 } 70 71 @Override 72 public void generate(NodeLIRBuilderTool gen) { 73 assert constant != null : "Expected the value to fold: " + value; 74 Value result; 75 if (constant instanceof HotSpotMetaspaceConstant) { 76 result = ((HotSpotLIRGenerator) gen.getLIRGeneratorTool()).emitLoadMetaspaceAddress(constant, HotSpotConstantLoadAction.LOAD_COUNTERS); 77 } else { 78 throw new PermanentBailoutException("Unsupported constant type: " + constant); 79 } 80 gen.setResult(this, result); 81 } 82 83 @NodeIntrinsic 84 public static native MethodCountersPointer loadMethodCounters(MethodPointer methodPointer); 85 }