--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/DirectReadNode.java	Fri Oct 12 16:11:12 2012 -0700
@@ -0,0 +1,53 @@
+/*
+ * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+package com.oracle.graal.hotspot.nodes;
+
+import com.oracle.graal.api.code.*;
+import com.oracle.graal.api.meta.*;
+import com.oracle.graal.nodes.*;
+import com.oracle.graal.nodes.extended.*;
+import com.oracle.graal.nodes.spi.*;
+import com.oracle.graal.nodes.type.*;
+
+/**
+ * A special purpose store node that differs from {@link UnsafeStoreNode} in that
+ * it is not a {@link StateSplit} and takes a computed address instead of an object.
+ */
+public class DirectReadNode extends FixedWithNextNode implements LIRLowerable {
+    @Input private ValueNode address;
+    private final Kind readKind;
+
+    public DirectReadNode(ValueNode address, Kind readKind) {
+        super(StampFactory.forKind(readKind));
+        this.address = address;
+        this.readKind = readKind;
+    }
+
+    @Override
+    public void generate(LIRGeneratorTool gen) {
+        gen.setResult(this, gen.emitLoad(new Address(readKind, gen.operand(address)), false));
+    }
+
+    @NodeIntrinsic
+    public static native <T> T read(long address, @ConstantNodeParameter Kind kind);
+}

--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/DirectStoreNode.java	Fri Oct 12 16:10:45 2012 -0700
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/DirectStoreNode.java	Fri Oct 12 16:11:12 2012 -0700
@@ -47,6 +47,9 @@
     public static native void store(long address, long value);
 
     @NodeIntrinsic
+    public static native void store(long address, int value);
+
+    @NodeIntrinsic
     public static native void store(long address, boolean value);
 
     @Override

--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/UnsafeSnippets.java	Fri Oct 12 16:10:45 2012 -0700
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/UnsafeSnippets.java	Fri Oct 12 16:11:12 2012 -0700
@@ -24,6 +24,7 @@
 
 import com.oracle.graal.api.code.*;
 import com.oracle.graal.api.meta.*;
+import com.oracle.graal.hotspot.nodes.*;
 import com.oracle.graal.nodes.extended.*;
 import com.oracle.graal.nodes.java.*;
 import com.oracle.graal.snippets.*;
@@ -249,4 +250,20 @@
         putDouble(o, offset, x);
         MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
     }
+
+    public void putInt(long address, int value) {
+        DirectStoreNode.store(address, value);
+    }
+
+    public void putLong(long address, long value) {
+        DirectStoreNode.store(address, value);
+    }
+
+    public int getInt(long address) {
+        return DirectReadNode.read(address, Kind.Int);
+    }
+
+    public long getLong(long address) {
+        return DirectReadNode.read(address, Kind.Long);
+    }
 }