# HG changeset patch
# User Christian Wimmer <christian.wimmer@oracle.com>
# Date 1356558943 28800
# Node ID 4d6d84714c17d1956835efa9015e12c87eaf2881
# Parent  8b4940b9be008de2d39bfd7775c54b1e8d8c8445
Intrinsics for sun.misc.Unsafe are not HotSpot-specific and useful outside of the HotSpot project

diff -r 8b4940b9be00 -r 4d6d84714c17 graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/DirectReadNode.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/DirectReadNode.java	Wed Dec 26 13:37:44 2012 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,53 +0,0 @@
-/*
- * 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);
-}
diff -r 8b4940b9be00 -r 4d6d84714c17 graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/DirectStoreNode.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/nodes/DirectStoreNode.java	Wed Dec 26 13:37:44 2012 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,75 +0,0 @@
-/*
- * 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 DirectStoreNode extends FixedWithNextNode implements LIRLowerable {
-    @Input private ValueNode address;
-    @Input private ValueNode value;
-
-    public DirectStoreNode(ValueNode address, ValueNode value) {
-        super(StampFactory.forVoid());
-        this.address = address;
-        this.value = value;
-    }
-
-    @NodeIntrinsic
-    public static native void store(long address, boolean value);
-
-    @NodeIntrinsic
-    public static native void store(long address, byte value);
-
-    @NodeIntrinsic
-    public static native void store(long address, short value);
-
-    @NodeIntrinsic
-    public static native void store(long address, char value);
-
-    @NodeIntrinsic
-    public static native void store(long address, int value);
-
-    @NodeIntrinsic
-    public static native void store(long address, long value);
-
-    @NodeIntrinsic
-    public static native void store(long address, float value);
-
-    @NodeIntrinsic
-    public static native void store(long address, double value);
-
-    @Override
-    public void generate(LIRGeneratorTool gen) {
-        Value v = gen.operand(value);
-        gen.emitStore(new Address(v.getKind(), gen.operand(address)), v, false);
-    }
-}
diff -r 8b4940b9be00 -r 4d6d84714c17 graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/UnsafeSnippets.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/UnsafeSnippets.java	Wed Dec 26 13:37:44 2012 -0800
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,383 +0,0 @@
-/*
- * Copyright (c) 2011, 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.snippets;
-
-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.*;
-import com.oracle.graal.snippets.ClassSubstitution.*;
-
-/**
- * Snippets for {@link sun.misc.Unsafe} methods.
- */
-@ClassSubstitution(sun.misc.Unsafe.class)
-public class UnsafeSnippets implements SnippetsInterface {
-    @MethodSubstitution(isStatic = false)
-    public static boolean compareAndSwapObject(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, Object expected, Object x) {
-        return CompareAndSwapNode.compareAndSwap(o, 0, offset, expected, x);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static boolean compareAndSwapInt(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, int expected, int x) {
-        return CompareAndSwapNode.compareAndSwap(o, 0, offset, expected, x);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static boolean compareAndSwapLong(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, long expected, long x) {
-        return CompareAndSwapNode.compareAndSwap(o, 0, offset, expected, x);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static Object getObject(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
-        return UnsafeLoadNode.load(o, 0, offset, Kind.Object);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static Object getObjectVolatile(final Object thisObj, Object o, long offset) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
-        Object result = getObject(thisObj, o, offset);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putObject(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, Object x) {
-        UnsafeStoreNode.store(o, 0, offset, x, Kind.Object);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putObjectVolatile(final Object thisObj, Object o, long offset, Object x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putObject(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putOrderedObject(final Object thisObj, Object o, long offset, Object x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putObject(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static int getInt(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
-        Integer value = UnsafeLoadNode.load(o, 0, offset, Kind.Int);
-        return value;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static int getIntVolatile(final Object thisObj, Object o, long offset) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
-        int result = getInt(thisObj, o, offset);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putInt(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, int x) {
-        UnsafeStoreNode.store(o, 0, offset, x, Kind.Int);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putIntVolatile(final Object thisObj, Object o, long offset, int x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putInt(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putOrderedInt(final Object thisObj, Object o, long offset, int x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putInt(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static boolean getBoolean(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
-        @JavacBug(id = 6995200)
-        Boolean result = UnsafeLoadNode.load(o, 0, offset, Kind.Boolean);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static boolean getBooleanVolatile(final Object thisObj, Object o, long offset) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
-        boolean result = getBoolean(thisObj, o, offset);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putBoolean(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, boolean x) {
-        UnsafeStoreNode.store(o, 0, offset, x, Kind.Boolean);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putBooleanVolatile(final Object thisObj, Object o, long offset, boolean x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putBoolean(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static byte getByte(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
-        @JavacBug(id = 6995200)
-        Byte result = UnsafeLoadNode.load(o, 0, offset, Kind.Byte);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static byte getByteVolatile(final Object thisObj, Object o, long offset) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
-        byte result = getByte(thisObj, o, offset);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putByte(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, byte x) {
-        UnsafeStoreNode.store(o, 0, offset, x, Kind.Byte);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putByteVolatile(final Object thisObj, Object o, long offset, byte x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putByte(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static short getShort(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
-        @JavacBug(id = 6995200)
-        Short result = UnsafeLoadNode.load(o, 0, offset, Kind.Short);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static short getShortVolatile(final Object thisObj, Object o, long offset) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
-        short result = getShort(thisObj, o, offset);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putShort(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, short x) {
-        UnsafeStoreNode.store(o, 0, offset, x, Kind.Short);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putShortVolatile(final Object thisObj, Object o, long offset, short x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putShort(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static char getChar(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
-        @JavacBug(id = 6995200)
-        Character result = UnsafeLoadNode.load(o, 0, offset, Kind.Char);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static char getCharVolatile(final Object thisObj, Object o, long offset) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
-        char result = getChar(thisObj, o, offset);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putChar(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, char x) {
-        UnsafeStoreNode.store(o, 0, offset, x, Kind.Char);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putCharVolatile(final Object thisObj, Object o, long offset, char x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putChar(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static long getLong(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
-        @JavacBug(id = 6995200)
-        Long result = UnsafeLoadNode.load(o, 0, offset, Kind.Long);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static long getLongVolatile(final Object thisObj, Object o, long offset) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
-        long result = getLong(thisObj, o, offset);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putLong(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, long x) {
-        UnsafeStoreNode.store(o, 0, offset, x, Kind.Long);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putLongVolatile(final Object thisObj, Object o, long offset, long x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putLong(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putOrderedLong(final Object thisObj, Object o, long offset, long x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putLong(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static float getFloat(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
-        @JavacBug(id = 6995200)
-        Float result = UnsafeLoadNode.load(o, 0, offset, Kind.Float);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static float getFloatVolatile(final Object thisObj, Object o, long offset) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
-        float result = getFloat(thisObj, o, offset);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putFloat(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, float x) {
-        UnsafeStoreNode.store(o, 0, offset, x, Kind.Float);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putFloatVolatile(final Object thisObj, Object o, long offset, float x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putFloat(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static double getDouble(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
-        @JavacBug(id = 6995200)
-        Double result = UnsafeLoadNode.load(o, 0, offset, Kind.Double);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static double getDoubleVolatile(final Object thisObj, Object o, long offset) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
-        double result = getDouble(thisObj, o, offset);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
-        return result;
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putDouble(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, double x) {
-        UnsafeStoreNode.store(o, 0, offset, x, Kind.Double);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putDoubleVolatile(final Object thisObj, Object o, long offset, double x) {
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
-        putDouble(thisObj, o, offset, x);
-        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putByte(@SuppressWarnings("unused") final Object thisObj, long address, byte value) {
-        DirectStoreNode.store(address, value);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putShort(@SuppressWarnings("unused") final Object thisObj, long address, short value) {
-        DirectStoreNode.store(address, value);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putChar(@SuppressWarnings("unused") final Object thisObj, long address, char value) {
-        DirectStoreNode.store(address, value);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putInt(@SuppressWarnings("unused") final Object thisObj, long address, int value) {
-        DirectStoreNode.store(address, value);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putLong(@SuppressWarnings("unused") final Object thisObj, long address, long value) {
-        DirectStoreNode.store(address, value);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putFloat(@SuppressWarnings("unused") final Object thisObj, long address, float value) {
-        DirectStoreNode.store(address, value);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static void putDouble(@SuppressWarnings("unused") final Object thisObj, long address, double value) {
-        DirectStoreNode.store(address, value);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static byte getByte(@SuppressWarnings("unused") final Object thisObj, long address) {
-        return DirectReadNode.read(address, Kind.Byte);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static short getShort(@SuppressWarnings("unused") final Object thisObj, long address) {
-        return DirectReadNode.read(address, Kind.Short);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static char getChar(@SuppressWarnings("unused") final Object thisObj, long address) {
-        return DirectReadNode.read(address, Kind.Char);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static int getInt(@SuppressWarnings("unused") final Object thisObj, long address) {
-        return DirectReadNode.read(address, Kind.Int);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static long getLong(@SuppressWarnings("unused") final Object thisObj, long address) {
-        return DirectReadNode.read(address, Kind.Long);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static float getFloat(@SuppressWarnings("unused") final Object thisObj, long address) {
-        return DirectReadNode.read(address, Kind.Float);
-    }
-
-    @MethodSubstitution(isStatic = false)
-    public static double getDouble(@SuppressWarnings("unused") final Object thisObj, long address) {
-        return DirectReadNode.read(address, Kind.Double);
-    }
-}
diff -r 8b4940b9be00 -r 4d6d84714c17 graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/UnsafeSnippets.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/UnsafeSnippets.java	Wed Dec 26 13:55:43 2012 -0800
@@ -0,0 +1,382 @@
+/*
+ * Copyright (c) 2011, 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.snippets;
+
+import com.oracle.graal.api.code.*;
+import com.oracle.graal.api.meta.*;
+import com.oracle.graal.nodes.extended.*;
+import com.oracle.graal.nodes.java.*;
+import com.oracle.graal.snippets.ClassSubstitution.MethodSubstitution;
+import com.oracle.graal.snippets.nodes.*;
+
+/**
+ * Snippets for {@link sun.misc.Unsafe} methods.
+ */
+@ClassSubstitution(sun.misc.Unsafe.class)
+public class UnsafeSnippets implements SnippetsInterface {
+    @MethodSubstitution(isStatic = false)
+    public static boolean compareAndSwapObject(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, Object expected, Object x) {
+        return CompareAndSwapNode.compareAndSwap(o, 0, offset, expected, x);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static boolean compareAndSwapInt(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, int expected, int x) {
+        return CompareAndSwapNode.compareAndSwap(o, 0, offset, expected, x);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static boolean compareAndSwapLong(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, long expected, long x) {
+        return CompareAndSwapNode.compareAndSwap(o, 0, offset, expected, x);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static Object getObject(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
+        return UnsafeLoadNode.load(o, 0, offset, Kind.Object);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static Object getObjectVolatile(final Object thisObj, Object o, long offset) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
+        Object result = getObject(thisObj, o, offset);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putObject(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, Object x) {
+        UnsafeStoreNode.store(o, 0, offset, x, Kind.Object);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putObjectVolatile(final Object thisObj, Object o, long offset, Object x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putObject(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putOrderedObject(final Object thisObj, Object o, long offset, Object x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putObject(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static int getInt(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
+        Integer value = UnsafeLoadNode.load(o, 0, offset, Kind.Int);
+        return value;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static int getIntVolatile(final Object thisObj, Object o, long offset) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
+        int result = getInt(thisObj, o, offset);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putInt(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, int x) {
+        UnsafeStoreNode.store(o, 0, offset, x, Kind.Int);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putIntVolatile(final Object thisObj, Object o, long offset, int x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putInt(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putOrderedInt(final Object thisObj, Object o, long offset, int x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putInt(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static boolean getBoolean(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
+        @JavacBug(id = 6995200)
+        Boolean result = UnsafeLoadNode.load(o, 0, offset, Kind.Boolean);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static boolean getBooleanVolatile(final Object thisObj, Object o, long offset) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
+        boolean result = getBoolean(thisObj, o, offset);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putBoolean(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, boolean x) {
+        UnsafeStoreNode.store(o, 0, offset, x, Kind.Boolean);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putBooleanVolatile(final Object thisObj, Object o, long offset, boolean x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putBoolean(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static byte getByte(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
+        @JavacBug(id = 6995200)
+        Byte result = UnsafeLoadNode.load(o, 0, offset, Kind.Byte);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static byte getByteVolatile(final Object thisObj, Object o, long offset) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
+        byte result = getByte(thisObj, o, offset);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putByte(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, byte x) {
+        UnsafeStoreNode.store(o, 0, offset, x, Kind.Byte);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putByteVolatile(final Object thisObj, Object o, long offset, byte x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putByte(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static short getShort(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
+        @JavacBug(id = 6995200)
+        Short result = UnsafeLoadNode.load(o, 0, offset, Kind.Short);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static short getShortVolatile(final Object thisObj, Object o, long offset) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
+        short result = getShort(thisObj, o, offset);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putShort(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, short x) {
+        UnsafeStoreNode.store(o, 0, offset, x, Kind.Short);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putShortVolatile(final Object thisObj, Object o, long offset, short x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putShort(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static char getChar(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
+        @JavacBug(id = 6995200)
+        Character result = UnsafeLoadNode.load(o, 0, offset, Kind.Char);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static char getCharVolatile(final Object thisObj, Object o, long offset) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
+        char result = getChar(thisObj, o, offset);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putChar(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, char x) {
+        UnsafeStoreNode.store(o, 0, offset, x, Kind.Char);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putCharVolatile(final Object thisObj, Object o, long offset, char x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putChar(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static long getLong(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
+        @JavacBug(id = 6995200)
+        Long result = UnsafeLoadNode.load(o, 0, offset, Kind.Long);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static long getLongVolatile(final Object thisObj, Object o, long offset) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
+        long result = getLong(thisObj, o, offset);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putLong(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, long x) {
+        UnsafeStoreNode.store(o, 0, offset, x, Kind.Long);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putLongVolatile(final Object thisObj, Object o, long offset, long x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putLong(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putOrderedLong(final Object thisObj, Object o, long offset, long x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putLong(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static float getFloat(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
+        @JavacBug(id = 6995200)
+        Float result = UnsafeLoadNode.load(o, 0, offset, Kind.Float);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static float getFloatVolatile(final Object thisObj, Object o, long offset) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
+        float result = getFloat(thisObj, o, offset);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putFloat(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, float x) {
+        UnsafeStoreNode.store(o, 0, offset, x, Kind.Float);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putFloatVolatile(final Object thisObj, Object o, long offset, float x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putFloat(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static double getDouble(@SuppressWarnings("unused") final Object thisObj, Object o, long offset) {
+        @JavacBug(id = 6995200)
+        Double result = UnsafeLoadNode.load(o, 0, offset, Kind.Double);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static double getDoubleVolatile(final Object thisObj, Object o, long offset) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_READ);
+        double result = getDouble(thisObj, o, offset);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_READ);
+        return result;
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putDouble(@SuppressWarnings("unused") final Object thisObj, Object o, long offset, double x) {
+        UnsafeStoreNode.store(o, 0, offset, x, Kind.Double);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putDoubleVolatile(final Object thisObj, Object o, long offset, double x) {
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_PRE_VOLATILE_WRITE);
+        putDouble(thisObj, o, offset, x);
+        MembarNode.memoryBarrier(MemoryBarriers.JMM_POST_VOLATILE_WRITE);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putByte(@SuppressWarnings("unused") final Object thisObj, long address, byte value) {
+        DirectStoreNode.store(address, value);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putShort(@SuppressWarnings("unused") final Object thisObj, long address, short value) {
+        DirectStoreNode.store(address, value);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putChar(@SuppressWarnings("unused") final Object thisObj, long address, char value) {
+        DirectStoreNode.store(address, value);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putInt(@SuppressWarnings("unused") final Object thisObj, long address, int value) {
+        DirectStoreNode.store(address, value);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putLong(@SuppressWarnings("unused") final Object thisObj, long address, long value) {
+        DirectStoreNode.store(address, value);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putFloat(@SuppressWarnings("unused") final Object thisObj, long address, float value) {
+        DirectStoreNode.store(address, value);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static void putDouble(@SuppressWarnings("unused") final Object thisObj, long address, double value) {
+        DirectStoreNode.store(address, value);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static byte getByte(@SuppressWarnings("unused") final Object thisObj, long address) {
+        return DirectReadNode.read(address, Kind.Byte);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static short getShort(@SuppressWarnings("unused") final Object thisObj, long address) {
+        return DirectReadNode.read(address, Kind.Short);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static char getChar(@SuppressWarnings("unused") final Object thisObj, long address) {
+        return DirectReadNode.read(address, Kind.Char);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static int getInt(@SuppressWarnings("unused") final Object thisObj, long address) {
+        return DirectReadNode.read(address, Kind.Int);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static long getLong(@SuppressWarnings("unused") final Object thisObj, long address) {
+        return DirectReadNode.read(address, Kind.Long);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static float getFloat(@SuppressWarnings("unused") final Object thisObj, long address) {
+        return DirectReadNode.read(address, Kind.Float);
+    }
+
+    @MethodSubstitution(isStatic = false)
+    public static double getDouble(@SuppressWarnings("unused") final Object thisObj, long address) {
+        return DirectReadNode.read(address, Kind.Double);
+    }
+}
diff -r 8b4940b9be00 -r 4d6d84714c17 graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/nodes/DirectReadNode.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/nodes/DirectReadNode.java	Wed Dec 26 13:55:43 2012 -0800
@@ -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.snippets.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);
+}
diff -r 8b4940b9be00 -r 4d6d84714c17 graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/nodes/DirectStoreNode.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/nodes/DirectStoreNode.java	Wed Dec 26 13:55:43 2012 -0800
@@ -0,0 +1,75 @@
+/*
+ * 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.snippets.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 DirectStoreNode extends FixedWithNextNode implements LIRLowerable {
+    @Input private ValueNode address;
+    @Input private ValueNode value;
+
+    public DirectStoreNode(ValueNode address, ValueNode value) {
+        super(StampFactory.forVoid());
+        this.address = address;
+        this.value = value;
+    }
+
+    @NodeIntrinsic
+    public static native void store(long address, boolean value);
+
+    @NodeIntrinsic
+    public static native void store(long address, byte value);
+
+    @NodeIntrinsic
+    public static native void store(long address, short value);
+
+    @NodeIntrinsic
+    public static native void store(long address, char value);
+
+    @NodeIntrinsic
+    public static native void store(long address, int value);
+
+    @NodeIntrinsic
+    public static native void store(long address, long value);
+
+    @NodeIntrinsic
+    public static native void store(long address, float value);
+
+    @NodeIntrinsic
+    public static native void store(long address, double value);
+
+    @Override
+    public void generate(LIRGeneratorTool gen) {
+        Value v = gen.operand(value);
+        gen.emitStore(new Address(v.getKind(), gen.operand(address)), v, false);
+    }
+}