--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/GraalCompiler/src/com/sun/c1x/ir/StorePointer.java	Wed Apr 27 11:50:44 2011 +0200
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2009, 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.sun.c1x.ir;
+
+import com.sun.c1x.debug.*;
+import com.sun.c1x.value.*;
+import com.sun.cri.ci.*;
+
+/**
+ * The {@code StorePointer} instruction represents a write of a pointer.
+ * This instruction is part of the HIR support for low-level operations, such as safepoints,
+ * stack banging, etc, and does not correspond to a Java operation.
+ *
+ * @author Ben L. Titzer
+ * @author Doug Simon
+ */
+public final class StorePointer extends PointerOp {
+
+    Value value;
+
+    /**
+     * Creates an instruction for a pointer store. If {@code displacement != null}, the effective of the address of the store is
+     * computed as the pointer plus a byte displacement plus a scaled index. Otherwise, the effective address is computed as the
+     * pointer plus a byte offset.
+     * @param dataKind the kind of value at the address accessed by the pointer operation
+     * @param pointer the value producing the pointer
+     * @param displacement the value producing the displacement. This may be {@code null}.
+     * @param offsetOrIndex the value producing the scaled-index or the byte offset depending on whether {@code displacement} is {@code null}
+     * @param value the value to write to the pointer
+     * @param stateBefore the state before
+     * @param isVolatile {@code true} if the access is volatile
+     */
+    public StorePointer(int opcode, CiKind dataKind, Value pointer, Value displacement, Value offsetOrIndex, Value value, FrameState stateBefore, boolean isVolatile) {
+        super(CiKind.Void, dataKind, opcode, pointer, displacement, offsetOrIndex, stateBefore, isVolatile);
+        this.value = value;
+        setFlag(Flag.LiveStore);
+    }
+
+    @Override
+    public void accept(ValueVisitor v) {
+        v.visitStorePointer(this);
+    }
+
+    public Value value() {
+        return value;
+    }
+
+    @Override
+    public void inputValuesDo(ValueClosure closure) {
+        super.inputValuesDo(closure);
+        value = closure.apply(value);
+    }
+
+    @Override
+    public void print(LogStream out) {
+        out.print("*(").print(pointer);
+        if (displacement() == null) {
+            out.print(" + ").print(offset());
+        } else {
+            out.print(" + ").print(displacement()).print(" + (").print(index()).print(" * sizeOf(" + dataKind.name() + "))");
+        }
+        out.print(") := ").print(value());
+    }
+
+}