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comparison graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/NewInstanceNode.java @ 13122:c6ab6ae1b360

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Allow subclasses of NewInstanceNode and NewArrayNode to provide the default values used by escape analysis
author Christian Wimmer <christian.wimmer@oracle.com>
date Fri, 22 Nov 2013 11:55:13 -0800
parents e027a51bdd33
children 1f4c9729c9f0
comparison
equal deleted inserted replaced
13121:a4eb86dc383e 13122:c6ab6ae1b360
34 34
35 /** 35 /**
36 * The {@code NewInstanceNode} represents the allocation of an instance class object. 36 * The {@code NewInstanceNode} represents the allocation of an instance class object.
37 */ 37 */
38 @NodeInfo(nameTemplate = "New {p#instanceClass/s}") 38 @NodeInfo(nameTemplate = "New {p#instanceClass/s}")
39 public final class NewInstanceNode extends DeoptimizingFixedWithNextNode implements Canonicalizable, Lowerable, VirtualizableAllocation { 39 public class NewInstanceNode extends DeoptimizingFixedWithNextNode implements Canonicalizable, Lowerable, VirtualizableAllocation {
40 40
41 private final ResolvedJavaType instanceClass; 41 private final ResolvedJavaType instanceClass;
42 private final boolean fillContents; 42 private final boolean fillContents;
43 43
44 /** 44 /**
94 if (!tool.getMetaAccessProvider().lookupJavaType(Reference.class).isAssignableFrom(instanceClass)) { 94 if (!tool.getMetaAccessProvider().lookupJavaType(Reference.class).isAssignableFrom(instanceClass)) {
95 VirtualInstanceNode virtualObject = new VirtualInstanceNode(instanceClass(), true); 95 VirtualInstanceNode virtualObject = new VirtualInstanceNode(instanceClass(), true);
96 ResolvedJavaField[] fields = virtualObject.getFields(); 96 ResolvedJavaField[] fields = virtualObject.getFields();
97 ValueNode[] state = new ValueNode[fields.length]; 97 ValueNode[] state = new ValueNode[fields.length];
98 for (int i = 0; i < state.length; i++) { 98 for (int i = 0; i < state.length; i++) {
99 state[i] = ConstantNode.defaultForKind(fields[i].getType().getKind(), graph()); 99 state[i] = defaultFieldValue(fields[i]);
100 } 100 }
101 tool.createVirtualObject(virtualObject, state, null); 101 tool.createVirtualObject(virtualObject, state, null);
102 tool.replaceWithVirtual(virtualObject); 102 tool.replaceWithVirtual(virtualObject);
103 } 103 }
104 }
105
106 /* Factored out in a separate method so that subclasses can override it. */
107 protected ConstantNode defaultFieldValue(ResolvedJavaField field) {
108 return ConstantNode.defaultForKind(field.getType().getKind(), graph());
104 } 109 }
105 110
106 @Override 111 @Override
107 public boolean canDeoptimize() { 112 public boolean canDeoptimize() {
108 return true; 113 return true;