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changeset 7011:09df32b1dff9

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make InstanceOfNode Virtualizable
author Lukas Stadler <lukas.stadler@jku.at>
date Fri, 23 Nov 2012 13:38:53 +0100
parents 1d5f1237902f
children 9b7de658a76a
files graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/InstanceOfNode.java
diffstat 1 files changed, 10 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/InstanceOfNode.java	Tue Nov 20 16:38:09 2012 +0100
+++ b/graal/com.oracle.graal.nodes/src/com/oracle/graal/nodes/java/InstanceOfNode.java	Fri Nov 23 13:38:53 2012 +0100
@@ -28,11 +28,12 @@
 import com.oracle.graal.nodes.calc.*;
 import com.oracle.graal.nodes.spi.*;
 import com.oracle.graal.nodes.type.*;
+import com.oracle.graal.nodes.virtual.*;
 
 /**
  * The {@code InstanceOfNode} represents an instanceof test.
  */
-public final class InstanceOfNode extends BooleanNode implements Canonicalizable, Lowerable, LIRLowerable {
+public final class InstanceOfNode extends BooleanNode implements Canonicalizable, Lowerable, LIRLowerable, Virtualizable {
 
     @Input private ValueNode object;
     private final ResolvedJavaType type;
@@ -129,4 +130,12 @@
         }
         return super.verify();
     }
+
+    @Override
+    public void virtualize(VirtualizerTool tool) {
+        VirtualObjectNode virtual = tool.getVirtualState(object());
+        if (virtual != null) {
+            tool.replaceWithValue(ConstantNode.forBoolean(virtual.type().isSubtypeOf(type()), graph()));
+        }
+    }
 }