# HG changeset patch
# User Christos Kotselidis <christos.kotselidis@oracle.com>
# Date 1373631653 -7200
# Node ID 6621bc66bfa470d62d757b0ccf4ba10be1a581dc
# Parent  0bd794eb822282b9edf77e3e687296d77dca45fb
Add WriteHubNode lowering

diff -r 0bd794eb8222 -r 6621bc66bfa4 graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java	Fri Jul 12 14:17:42 2013 +0200
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotRuntime.java	Fri Jul 12 14:20:53 2013 +0200
@@ -649,6 +649,10 @@
             ResolvedJavaMethod method = loadMethodNode.getMethod();
             ReadNode metaspaceMethod = createReadVirtualMethod(graph, wordKind, loadMethodNode.getHub(), method);
             graph.replaceFixed(loadMethodNode, metaspaceMethod);
+        } else if (n instanceof StoreHubNode) {
+            StoreHubNode storeHub = (StoreHubNode) n;
+            WriteNode hub = createWriteHub(graph, wordKind, storeHub.getObject(), storeHub.getValue());
+            graph.replaceFixed(storeHub, hub);
         } else if (n instanceof FixedGuardNode) {
             FixedGuardNode node = (FixedGuardNode) n;
             GuardingNode guard = tool.createGuard(node.condition(), node.getReason(), node.getAction(), node.isNegated());
@@ -839,6 +843,12 @@
         return graph.add(new ReadNode(object, location, StampFactory.forKind(wordKind()), WriteBarrierType.NONE, false));
     }
 
+    private WriteNode createWriteHub(StructuredGraph graph, Kind wordKind, ValueNode object, ValueNode value) {
+        LocationNode location = ConstantLocationNode.create(ANY_LOCATION, wordKind, config.hubOffset, graph);
+        assert !object.isConstant() || object.asConstant().isNull();
+        return graph.add(new WriteNode(object, value, location, WriteBarrierType.NONE, config.useCompressedKlassPointers));
+    }
+
     public static long referentOffset() {
         try {
             return unsafe.objectFieldOffset(java.lang.ref.Reference.class.getDeclaredField("referent"));