--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/GraalCompiler/src/com/sun/c1x/ir/Invoke.java	Wed Apr 27 11:50:44 2011 +0200
@@ -0,0 +1,172 @@
+/*
+ * 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.util.*;
+import com.sun.c1x.value.*;
+import com.sun.cri.ci.*;
+import com.sun.cri.ri.*;
+
+/**
+ * The {@code Invoke} instruction represents all kinds of method calls.
+ *
+ * @author Ben L. Titzer
+ */
+public final class Invoke extends StateSplit {
+
+    public final int opcode;
+    public final Value[] arguments;
+    public final RiMethod target;
+    public final RiType returnType;
+
+    /**
+     * Constructs a new Invoke instruction.
+     *
+     * @param opcode the opcode of the invoke
+     * @param result the result type
+     * @param args the list of instructions producing arguments to the invocation, including the receiver object
+     * @param isStatic {@code true} if this call is static (no receiver object)
+     * @param target the target method being called
+     * @param stateBefore the state before executing the invocation
+     */
+    public Invoke(int opcode, CiKind result, Value[] args, boolean isStatic, RiMethod target, RiType returnType, FrameState stateBefore) {
+        super(result, stateBefore);
+        this.opcode = opcode;
+        this.arguments = args;
+        this.target = target;
+        this.returnType = returnType;
+        if (isStatic) {
+            setFlag(Flag.IsStatic);
+            eliminateNullCheck();
+        } else if (args[0].isNonNull() || args[0].kind.isWord()) {
+            eliminateNullCheck();
+        }
+    }
+
+    /**
+     * Gets the opcode of this invoke instruction.
+     * @return the opcode
+     */
+    public int opcode() {
+        return opcode;
+    }
+
+    /**
+     * Checks whether this is an invocation of a static method.
+     * @return {@code true} if the invocation is a static invocation
+     */
+    public boolean isStatic() {
+        return checkFlag(Flag.IsStatic);
+    }
+
+    @Override
+    public RiType declaredType() {
+        return returnType;
+    }
+
+    /**
+     * Gets the instruction that produces the receiver object for this invocation, if any.
+     * @return the instruction that produces the receiver object for this invocation if any, {@code null} if this
+     *         invocation does not take a receiver object
+     */
+    public Value receiver() {
+        assert !isStatic();
+        return arguments[0];
+    }
+
+    /**
+     * Gets the target method for this invocation instruction.
+     * @return the target method
+     */
+    public RiMethod target() {
+        return target;
+    }
+
+    /**
+     * Gets the list of instructions that produce input for this instruction.
+     * @return the list of instructions that produce input
+     */
+    public Value[] arguments() {
+        return arguments;
+    }
+
+    /**
+     * Checks whether this instruction can trap.
+     * @return {@code true}, conservatively assuming the called method may throw an exception
+     */
+    @Override
+    public boolean canTrap() {
+        return true;
+    }
+
+    /**
+     * Checks whether this invocation has a receiver object.
+     * @return {@code true} if this invocation has a receiver object; {@code false} otherwise, if this is a
+     *         static call
+     */
+    public boolean hasReceiver() {
+        return !isStatic();
+    }
+
+    @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;
+            }
+        }
+    }
+
+    @Override
+    public void accept(ValueVisitor v) {
+        v.visitInvoke(this);
+    }
+
+    public CiKind[] signature() {
+        CiKind receiver = isStatic() ? null : target.holder().kind();
+        return Util.signatureToKinds(target.signature(), receiver);
+    }
+
+    @Override
+    public void print(LogStream out) {
+        int argStart = 0;
+        if (hasReceiver()) {
+            out.print(receiver()).print('.');
+            argStart = 1;
+        }
+
+        RiMethod target = target();
+        out.print(target.name()).print('(');
+        Value[] arguments = arguments();
+        for (int i = argStart; i < arguments.length; i++) {
+            if (i > argStart) {
+                out.print(", ");
+            }
+            out.print(arguments[i]);
+        }
+        out.print(CiUtil.format(") [method: %H.%n(%p):%r]", target, false));
+    }
+}