--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/GraalCompiler/src/com/sun/c1x/ir/NativeCall.java	Wed Apr 27 11:50:44 2011 +0200
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2010, 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.ri.*;
+
+/**
+ * Represents a call to a native function from within a native method stub.
+ *
+ * @author Doug Simon
+ */
+public final class NativeCall extends StateSplit {
+
+    /**
+     * The instruction that produces the native function address for this native call.
+     */
+    private Value address;
+
+    /**
+     * The native method for this native call.
+     */
+    public final RiMethod nativeMethod;
+
+    /**
+     * The signature of the call which is derived from {@link #nativeMethod} but is not
+     * the same as its {@linkplain RiMethod#signature() signature}.
+     */
+    public final RiSignature signature;
+
+    /**
+     * The list of instructions that produce the arguments for this native call.
+     */
+    public final Value[] arguments;
+
+    /**
+     * Constructs a new NativeCall instruction.
+     *
+     * @param nativeMethod TODO
+     * @param signature TODO
+     * @param address TODO
+     * @param args the list of instructions producing arguments to the invocation
+     * @param stateBefore the state before executing the invocation
+     */
+    public NativeCall(RiMethod nativeMethod, RiSignature signature, Value address, Value[] args, FrameState stateBefore) {
+        super(signature.returnKind().stackKind(), stateBefore);
+        this.address = address;
+        this.nativeMethod = nativeMethod;
+        this.arguments = args;
+        this.signature = signature;
+        assert nativeMethod.jniSymbol() != null;
+    }
+
+    /**
+     * The native function may call back into the VM which may call method that can trap.
+     */
+    @Override
+    public boolean canTrap() {
+        return true;
+    }
+
+    /**
+     * Gets the instruction that produces the native function address for this native call.
+     * @return the instruction
+     */
+    public Value address() {
+        return address;
+    }
+
+    @Override
+    public void inputValuesDo(ValueClosure closure) {
+        for (int i = 0; i < arguments.length; i++) {
+            Value arg = arguments[i];
+            if (arg != null) {
+                arguments[i] = closure.apply(arg);
+                assert arguments[i] != null;
+            }
+        }
+        address = closure.apply(address);
+    }
+
+    @Override
+    public void accept(ValueVisitor v) {
+        v.visitNativeCall(this);
+    }
+
+    @Override
+    public void print(LogStream out) {
+        out.print(nativeMethod.jniSymbol()).print('(');
+        for (int i = 0; i < arguments.length; i++) {
+            if (i > 0) {
+                out.print(", ");
+            }
+            out.print(arguments[i]);
+        }
+        out.print(')');
+    }
+}