1 /* 2 * Copyright (c) 2011, 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.nodes; 24 25 import static org.graalvm.compiler.nodeinfo.InputType.Extension; 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.type.Stamp; 30 import org.graalvm.compiler.core.common.type.StampFactory; 31 import org.graalvm.compiler.core.common.type.StampPair; 32 import org.graalvm.compiler.core.common.type.TypeReference; 33 import org.graalvm.compiler.graph.NodeClass; 34 import org.graalvm.compiler.graph.NodeInputList; 35 import org.graalvm.compiler.nodeinfo.NodeInfo; 36 import org.graalvm.compiler.nodes.spi.LIRLowerable; 37 import org.graalvm.compiler.nodes.spi.NodeLIRBuilderTool; 38 39 import jdk.vm.ci.meta.Assumptions; 40 import jdk.vm.ci.meta.JavaKind; 41 import jdk.vm.ci.meta.JavaType; 42 import jdk.vm.ci.meta.ResolvedJavaMethod; 43 import jdk.vm.ci.meta.ResolvedJavaType; 44 45 @NodeInfo(allowedUsageTypes = Extension, cycles = CYCLES_0, size = SIZE_0) 46 public abstract class CallTargetNode extends ValueNode implements LIRLowerable { 47 public static final NodeClass<CallTargetNode> TYPE = NodeClass.create(CallTargetNode.class); 48 49 public enum InvokeKind { 50 Interface(false), 51 Special(true), 52 Static(true), 53 Virtual(false); 54 55 InvokeKind(boolean direct) { 56 this.direct = direct; 57 } 58 59 private final boolean direct; 60 61 public boolean hasReceiver() { 62 return this != Static; 63 } 64 65 public boolean isDirect() { 66 return direct; 67 } 68 69 public boolean isIndirect() { 70 return !direct; 71 } 72 73 public boolean isInterface() { 74 return this == InvokeKind.Interface; 75 } 76 } 77 78 @Input protected NodeInputList<ValueNode> arguments; 79 protected ResolvedJavaMethod targetMethod; 80 protected InvokeKind invokeKind; 81 protected final StampPair returnStamp; 82 83 protected CallTargetNode(NodeClass<? extends CallTargetNode> c, ValueNode[] arguments, ResolvedJavaMethod targetMethod, InvokeKind invokeKind, StampPair returnStamp) { 84 super(c, StampFactory.forVoid()); 85 this.targetMethod = targetMethod; 86 this.invokeKind = invokeKind; 87 this.arguments = new NodeInputList<>(this, arguments); 88 this.returnStamp = returnStamp; 89 } 90 91 public NodeInputList<ValueNode> arguments() { 92 return arguments; 93 } 94 95 public static Stamp createReturnStamp(Assumptions assumptions, JavaType returnType) { 96 JavaKind kind = returnType.getJavaKind(); 97 if (kind == JavaKind.Object && returnType instanceof ResolvedJavaType) { 98 return StampFactory.object(TypeReference.create(assumptions, (ResolvedJavaType) returnType)); 99 } else { 100 return StampFactory.forKind(kind); 101 } 102 } 103 104 public StampPair returnStamp() { 105 return this.returnStamp; 106 } 107 108 /** 109 * A human-readable representation of the target, used for debug printing only. 110 */ 111 public abstract String targetName(); 112 113 @Override 114 public void generate(NodeLIRBuilderTool gen) { 115 // nop 116 } 117 118 public void setTargetMethod(ResolvedJavaMethod method) { 119 targetMethod = method; 120 } 121 122 /** 123 * Gets the target method for this invocation instruction. 124 * 125 * @return the target method 126 */ 127 public ResolvedJavaMethod targetMethod() { 128 return targetMethod; 129 } 130 131 public InvokeKind invokeKind() { 132 return invokeKind; 133 } 134 135 public void setInvokeKind(InvokeKind kind) { 136 this.invokeKind = kind; 137 } 138 }