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changeset 5576:a4d0ded32ddd

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moved @Fold from Node.java to Snippet.java moved SnippetIntrinsificationPhase from com.oracle.graal.compiler to com.oracle.graal.snippets
author Doug Simon <doug.simon@oracle.com>
date Tue, 12 Jun 2012 23:28:30 +0200
parents eddf8a51be38
children 5c15f7b407e4
files graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/phases/SnippetIntrinsificationPhase.java graal/com.oracle.graal.graph/src/com/oracle/graal/graph/Node.java graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/ArrayCopySnippets.java graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/CheckCastSnippets.java graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/NewInstanceSnippets.java graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/Snippet.java graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/SnippetIntrinsificationPhase.java
diffstat 7 files changed, 286 insertions(+), 301 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.compiler/src/com/oracle/graal/compiler/phases/SnippetIntrinsificationPhase.java	Tue Jun 12 23:11:13 2012 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,282 +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.compiler.phases;
-
-import java.lang.reflect.*;
-import java.util.*;
-
-import com.oracle.graal.api.code.*;
-import com.oracle.graal.api.meta.*;
-import com.oracle.graal.graph.*;
-import com.oracle.graal.graph.Node.ConstantNodeParameter;
-import com.oracle.graal.graph.Node.Fold;
-import com.oracle.graal.graph.Node.NodeIntrinsic;
-import com.oracle.graal.nodes.*;
-import com.oracle.graal.nodes.extended.*;
-import com.oracle.graal.nodes.java.*;
-import com.oracle.graal.nodes.util.*;
-
-public class SnippetIntrinsificationPhase extends Phase {
-
-    private final CodeCacheProvider runtime;
-    private final BoxingMethodPool pool;
-
-    public SnippetIntrinsificationPhase(CodeCacheProvider runtime, BoxingMethodPool pool) {
-        this.runtime = runtime;
-        this.pool = pool;
-    }
-
-    @Override
-    protected void run(StructuredGraph graph) {
-        for (Invoke i : graph.getInvokes()) {
-            tryIntrinsify(i);
-        }
-    }
-
-    private void tryIntrinsify(Invoke invoke) {
-        ResolvedJavaMethod target = invoke.callTarget().targetMethod();
-        NodeIntrinsic intrinsic = target.getAnnotation(Node.NodeIntrinsic.class);
-        if (intrinsic != null) {
-            assert target.getAnnotation(Node.Fold.class) == null;
-
-            Class< ? >[] parameterTypes = CodeUtil.signatureToTypes(target.signature(), target.holder());
-
-            // Prepare the arguments for the reflective constructor call on the node class.
-            Object[] nodeConstructorArguments = prepareArguments(invoke, parameterTypes, target, false);
-
-            // Create the new node instance.
-            Class< ? > c = getNodeClass(target, intrinsic);
-            Node newInstance = createNodeInstance(c, parameterTypes, nodeConstructorArguments);
-
-            // Replace the invoke with the new node.
-            invoke.node().graph().add(newInstance);
-            invoke.intrinsify(newInstance);
-
-            // Clean up checkcast instructions inserted by javac if the return type is generic.
-            cleanUpReturnCheckCast(newInstance);
-        } else if (target.getAnnotation(Node.Fold.class) != null) {
-            Class< ? >[] parameterTypes = CodeUtil.signatureToTypes(target.signature(), target.holder());
-
-            // Prepare the arguments for the reflective method call
-            Object[] arguments = prepareArguments(invoke, parameterTypes, target, true);
-            Object receiver = null;
-            if (!invoke.callTarget().isStatic()) {
-                receiver = arguments[0];
-                arguments = Arrays.asList(arguments).subList(1, arguments.length).toArray();
-            }
-
-            // Call the method
-            Constant constant = callMethod(target.signature().returnKind(), target.holder().toJava(), target.name(), parameterTypes, receiver, arguments);
-
-            if (constant != null) {
-                // Replace the invoke with the result of the call
-                ConstantNode node = ConstantNode.forConstant(constant, runtime, invoke.node().graph());
-                invoke.intrinsify(node);
-
-                // Clean up checkcast instructions inserted by javac if the return type is generic.
-                cleanUpReturnCheckCast(node);
-            } else {
-                // Remove the invoke
-                invoke.intrinsify(null);
-            }
-        }
-    }
-
-    /**
-     * Converts the arguments of an invoke node to object values suitable for use as the arguments
-     * to a reflective invocation of a Java constructor or method.
-     *
-     * @param folding specifies if the invocation is for handling a {@link Fold} annotation
-     */
-    private Object[] prepareArguments(Invoke invoke, Class< ? >[] parameterTypes, ResolvedJavaMethod target, boolean folding) {
-        NodeInputList<ValueNode> arguments = invoke.callTarget().arguments();
-        Object[] reflectionCallArguments = new Object[arguments.size()];
-        for (int i = 0; i < reflectionCallArguments.length; ++i) {
-            int parameterIndex = i;
-            if (!invoke.callTarget().isStatic()) {
-                parameterIndex--;
-            }
-            ValueNode argument = tryBoxingElimination(parameterIndex, target, arguments.get(i));
-            if (folding || CodeUtil.getParameterAnnotation(ConstantNodeParameter.class, parameterIndex, target) != null) {
-                assert argument instanceof ConstantNode : "parameter " + parameterIndex + " must be a compile time constant for calling " + invoke.callTarget().targetMethod() + ": " + argument;
-                ConstantNode constantNode = (ConstantNode) argument;
-                Constant constant = constantNode.asConstant();
-                Object o = constant.boxedValue();
-                if (o instanceof Class< ? >) {
-                    reflectionCallArguments[i] = runtime.getResolvedJavaType((Class< ? >) o);
-                    parameterTypes[i] = ResolvedJavaType.class;
-                } else {
-                    if (parameterTypes[i] == boolean.class) {
-                        reflectionCallArguments[i] = Boolean.valueOf(constant.asInt() != 0);
-                    } else if (parameterTypes[i] == byte.class) {
-                        reflectionCallArguments[i] = Byte.valueOf((byte) constant.asInt());
-                    } else if (parameterTypes[i] == short.class) {
-                        reflectionCallArguments[i] = Short.valueOf((short) constant.asInt());
-                    } else if (parameterTypes[i] == char.class) {
-                        reflectionCallArguments[i] = Character.valueOf((char) constant.asInt());
-                    } else {
-                        reflectionCallArguments[i] = o;
-                    }
-                }
-            } else {
-                reflectionCallArguments[i] = argument;
-                parameterTypes[i] = ValueNode.class;
-            }
-        }
-        return reflectionCallArguments;
-    }
-
-    private static Class< ? > getNodeClass(ResolvedJavaMethod target, NodeIntrinsic intrinsic) {
-        Class< ? > result = intrinsic.value();
-        if (result == NodeIntrinsic.class) {
-            result = target.holder().toJava();
-        }
-        assert Node.class.isAssignableFrom(result);
-        return result;
-    }
-
-    private ValueNode tryBoxingElimination(int parameterIndex, ResolvedJavaMethod target, ValueNode node) {
-        if (parameterIndex >= 0) {
-            Type type = target.getGenericParameterTypes()[parameterIndex];
-            if (type instanceof TypeVariable) {
-                TypeVariable typeVariable = (TypeVariable) type;
-                if (typeVariable.getBounds().length == 1) {
-                    Type boundType = typeVariable.getBounds()[0];
-                    if (boundType instanceof Class && ((Class) boundType).getSuperclass() == null) {
-                        // Unbound generic => try boxing elimination
-                        if (node.usages().size() == 2) {
-                            if (node instanceof Invoke) {
-                                Invoke invokeNode = (Invoke) node;
-                                MethodCallTargetNode callTarget = invokeNode.callTarget();
-                                if (pool.isBoxingMethod(callTarget.targetMethod())) {
-                                    FrameState stateAfter = invokeNode.stateAfter();
-                                    assert stateAfter.usages().size() == 1;
-                                    invokeNode.node().replaceAtUsages(null);
-                                    ValueNode result = callTarget.arguments().get(0);
-                                    StructuredGraph graph = (StructuredGraph) node.graph();
-                                    if (invokeNode instanceof InvokeWithExceptionNode) {
-                                        // Destroy exception edge & clear stateAfter.
-                                        InvokeWithExceptionNode invokeWithExceptionNode = (InvokeWithExceptionNode) invokeNode;
-
-                                        invokeWithExceptionNode.killExceptionEdge();
-                                        graph.removeSplit(invokeWithExceptionNode, InvokeWithExceptionNode.NORMAL_EDGE);
-                                    } else {
-                                        graph.removeFixed((InvokeNode) invokeNode);
-                                    }
-                                    stateAfter.safeDelete();
-                                    GraphUtil.propagateKill(callTarget);
-                                    return result;
-                                }
-                            }
-                        }
-                    }
-                }
-            }
-        }
-        return node;
-    }
-
-    private static Node createNodeInstance(Class< ? > nodeClass, Class< ? >[] parameterTypes, Object[] nodeConstructorArguments) {
-        Constructor< ? > constructor;
-        try {
-            constructor = nodeClass.getDeclaredConstructor(parameterTypes);
-            constructor.setAccessible(true);
-        } catch (Exception e) {
-            throw new RuntimeException(e);
-        }
-        try {
-            return (ValueNode) constructor.newInstance(nodeConstructorArguments);
-        } catch (Exception e) {
-            throw new RuntimeException(constructor + Arrays.toString(nodeConstructorArguments), e);
-        }
-    }
-
-    /**
-     * Calls a Java method via reflection.
-     */
-    private static Constant callMethod(Kind returnKind, Class< ? > holder, String name, Class< ? >[] parameterTypes, Object receiver, Object[] arguments) {
-        Method method;
-        try {
-            method = holder.getDeclaredMethod(name, parameterTypes);
-            method.setAccessible(true);
-        } catch (Exception e) {
-            throw new RuntimeException(e);
-        }
-        try {
-            Object result = method.invoke(receiver, arguments);
-            if (result == null) {
-                return null;
-            }
-            return Constant.forBoxed(returnKind, result);
-        } catch (Exception e) {
-            throw new RuntimeException(e);
-        }
-    }
-
-    private static String sourceLocation(Node n) {
-        String loc = GraphUtil.approxSourceLocation(n);
-        return loc == null ? "<unknown>" : loc;
-    }
-
-    public void cleanUpReturnCheckCast(Node newInstance) {
-        if (newInstance instanceof ValueNode && ((ValueNode) newInstance).kind() != Kind.Object) {
-            StructuredGraph graph = (StructuredGraph) newInstance.graph();
-            for (CheckCastNode checkCastNode : newInstance.usages().filter(CheckCastNode.class).snapshot()) {
-                for (ValueProxyNode vpn : checkCastNode.usages().filter(ValueProxyNode.class).snapshot()) {
-                    graph.replaceFloating(vpn, checkCastNode);
-                }
-                for (Node checkCastUsage : checkCastNode.usages().snapshot()) {
-                    if (checkCastUsage instanceof ValueAnchorNode) {
-                        ValueAnchorNode valueAnchorNode = (ValueAnchorNode) checkCastUsage;
-                        graph.removeFixed(valueAnchorNode);
-                    } else if (checkCastUsage instanceof MethodCallTargetNode) {
-                        MethodCallTargetNode checkCastCallTarget = (MethodCallTargetNode) checkCastUsage;
-                        assert pool.isUnboxingMethod(checkCastCallTarget.targetMethod()) :
-                            "checkcast at " + sourceLocation(checkCastNode) + " not used by an unboxing method but by a call at " +
-                            sourceLocation(checkCastCallTarget.usages().first()) + " to " + checkCastCallTarget.targetMethod();
-                        Invoke invokeNode = checkCastCallTarget.invoke();
-                        invokeNode.node().replaceAtUsages(newInstance);
-                        if (invokeNode instanceof InvokeWithExceptionNode) {
-                            // Destroy exception edge & clear stateAfter.
-                            InvokeWithExceptionNode invokeWithExceptionNode = (InvokeWithExceptionNode) invokeNode;
-
-                            invokeWithExceptionNode.killExceptionEdge();
-                            graph.removeSplit(invokeWithExceptionNode, InvokeWithExceptionNode.NORMAL_EDGE);
-                        } else {
-                            graph.removeFixed((InvokeNode) invokeNode);
-                        }
-                        checkCastCallTarget.safeDelete();
-                    } else if (checkCastUsage instanceof FrameState) {
-                        checkCastUsage.replaceFirstInput(checkCastNode, null);
-                    } else {
-                        assert false : sourceLocation(checkCastUsage) + " has unexpected usage " + checkCastUsage + " of checkcast at " + sourceLocation(checkCastNode);
-                    }
-                }
-                FixedNode next = checkCastNode.next();
-                checkCastNode.setNext(null);
-                checkCastNode.replaceAtPredecessor(next);
-                GraphUtil.killCFG(checkCastNode);
-            }
-        }
-    }
-}
--- a/graal/com.oracle.graal.graph/src/com/oracle/graal/graph/Node.java	Tue Jun 12 23:11:13 2012 +0200
+++ b/graal/com.oracle.graal.graph/src/com/oracle/graal/graph/Node.java	Tue Jun 12 23:28:30 2012 +0200
@@ -90,21 +90,6 @@
         Class value() default NodeIntrinsic.class;
     }
 
-
-    /**
-     * Annotates a method replaced by a compile-time constant.
-     * A (resolved) call to the annotated method is replaced
-     * with a constant obtained by calling the annotated method via reflection.
-     *
-     * All arguments to such a method (including the receiver if applicable)
-     * must be compile-time constants.
-     */
-    @Retention(RetentionPolicy.RUNTIME)
-    @Target(ElementType.METHOD)
-    public static @interface Fold {
-    }
-
-
     @Retention(RetentionPolicy.RUNTIME)
     @Target(ElementType.METHOD)
     public static @interface NodePhase {
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/ArrayCopySnippets.java	Tue Jun 12 23:11:13 2012 +0200
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/ArrayCopySnippets.java	Tue Jun 12 23:28:30 2012 +0200
@@ -22,13 +22,13 @@
  */
 package com.oracle.graal.hotspot.snippets;
 import com.oracle.graal.api.meta.*;
-import com.oracle.graal.graph.Node.Fold;
 import com.oracle.graal.hotspot.*;
 import com.oracle.graal.nodes.*;
 import com.oracle.graal.nodes.extended.*;
 import com.oracle.graal.nodes.spi.*;
 import com.oracle.graal.nodes.type.*;
 import com.oracle.graal.snippets.*;
+import com.oracle.graal.snippets.Snippet.Fold;
 
 
 @SuppressWarnings("unused")
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/CheckCastSnippets.java	Tue Jun 12 23:11:13 2012 +0200
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/CheckCastSnippets.java	Tue Jun 12 23:28:30 2012 +0200
@@ -38,7 +38,6 @@
 import com.oracle.graal.cri.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
-import com.oracle.graal.graph.Node.Fold;
 import com.oracle.graal.hotspot.*;
 import com.oracle.graal.hotspot.meta.*;
 import com.oracle.graal.nodes.*;
@@ -46,6 +45,7 @@
 import com.oracle.graal.nodes.java.*;
 import com.oracle.graal.snippets.*;
 import com.oracle.graal.snippets.Snippet.ConstantParameter;
+import com.oracle.graal.snippets.Snippet.Fold;
 import com.oracle.graal.snippets.Snippet.Parameter;
 import com.oracle.graal.snippets.SnippetTemplate.Arguments;
 import com.oracle.graal.snippets.SnippetTemplate.Cache;
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/NewInstanceSnippets.java	Tue Jun 12 23:11:13 2012 +0200
+++ b/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/snippets/NewInstanceSnippets.java	Tue Jun 12 23:28:30 2012 +0200
@@ -37,7 +37,6 @@
 import com.oracle.graal.cri.*;
 import com.oracle.graal.debug.*;
 import com.oracle.graal.graph.*;
-import com.oracle.graal.graph.Node.Fold;
 import com.oracle.graal.hotspot.*;
 import com.oracle.graal.hotspot.meta.*;
 import com.oracle.graal.hotspot.nodes.*;
@@ -45,6 +44,7 @@
 import com.oracle.graal.nodes.java.*;
 import com.oracle.graal.snippets.*;
 import com.oracle.graal.snippets.Snippet.ConstantParameter;
+import com.oracle.graal.snippets.Snippet.Fold;
 import com.oracle.graal.snippets.Snippet.Parameter;
 import com.oracle.graal.snippets.SnippetTemplate.Arguments;
 import com.oracle.graal.snippets.SnippetTemplate.Cache;
--- a/graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/Snippet.java	Tue Jun 12 23:11:13 2012 +0200
+++ b/graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/Snippet.java	Tue Jun 12 23:28:30 2012 +0200
@@ -72,7 +72,6 @@
         };
     }
 
-
     /**
      * Annotates a method replaced by a compile-time constant.
      * A (resolved) call to the annotated method is replaced
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.snippets/src/com/oracle/graal/snippets/SnippetIntrinsificationPhase.java	Tue Jun 12 23:28:30 2012 +0200
@@ -0,0 +1,283 @@
+/*
+ * 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 java.lang.reflect.*;
+import java.util.*;
+
+import com.oracle.graal.api.code.*;
+import com.oracle.graal.api.meta.*;
+import com.oracle.graal.compiler.phases.*;
+import com.oracle.graal.graph.*;
+import com.oracle.graal.graph.Node.ConstantNodeParameter;
+import com.oracle.graal.graph.Node.NodeIntrinsic;
+import com.oracle.graal.nodes.*;
+import com.oracle.graal.nodes.extended.*;
+import com.oracle.graal.nodes.java.*;
+import com.oracle.graal.nodes.util.*;
+import com.oracle.graal.snippets.Snippet.Fold;
+
+public class SnippetIntrinsificationPhase extends Phase {
+
+    private final CodeCacheProvider runtime;
+    private final BoxingMethodPool pool;
+
+    public SnippetIntrinsificationPhase(CodeCacheProvider runtime, BoxingMethodPool pool) {
+        this.runtime = runtime;
+        this.pool = pool;
+    }
+
+    @Override
+    protected void run(StructuredGraph graph) {
+        for (Invoke i : graph.getInvokes()) {
+            tryIntrinsify(i);
+        }
+    }
+
+    private void tryIntrinsify(Invoke invoke) {
+        ResolvedJavaMethod target = invoke.callTarget().targetMethod();
+        NodeIntrinsic intrinsic = target.getAnnotation(Node.NodeIntrinsic.class);
+        if (intrinsic != null) {
+            assert target.getAnnotation(Fold.class) == null;
+
+            Class< ? >[] parameterTypes = CodeUtil.signatureToTypes(target.signature(), target.holder());
+
+            // Prepare the arguments for the reflective constructor call on the node class.
+            Object[] nodeConstructorArguments = prepareArguments(invoke, parameterTypes, target, false);
+
+            // Create the new node instance.
+            Class< ? > c = getNodeClass(target, intrinsic);
+            Node newInstance = createNodeInstance(c, parameterTypes, nodeConstructorArguments);
+
+            // Replace the invoke with the new node.
+            invoke.node().graph().add(newInstance);
+            invoke.intrinsify(newInstance);
+
+            // Clean up checkcast instructions inserted by javac if the return type is generic.
+            cleanUpReturnCheckCast(newInstance);
+        } else if (target.getAnnotation(Fold.class) != null) {
+            Class< ? >[] parameterTypes = CodeUtil.signatureToTypes(target.signature(), target.holder());
+
+            // Prepare the arguments for the reflective method call
+            Object[] arguments = prepareArguments(invoke, parameterTypes, target, true);
+            Object receiver = null;
+            if (!invoke.callTarget().isStatic()) {
+                receiver = arguments[0];
+                arguments = Arrays.asList(arguments).subList(1, arguments.length).toArray();
+            }
+
+            // Call the method
+            Constant constant = callMethod(target.signature().returnKind(), target.holder().toJava(), target.name(), parameterTypes, receiver, arguments);
+
+            if (constant != null) {
+                // Replace the invoke with the result of the call
+                ConstantNode node = ConstantNode.forConstant(constant, runtime, invoke.node().graph());
+                invoke.intrinsify(node);
+
+                // Clean up checkcast instructions inserted by javac if the return type is generic.
+                cleanUpReturnCheckCast(node);
+            } else {
+                // Remove the invoke
+                invoke.intrinsify(null);
+            }
+        }
+    }
+
+    /**
+     * Converts the arguments of an invoke node to object values suitable for use as the arguments
+     * to a reflective invocation of a Java constructor or method.
+     *
+     * @param folding specifies if the invocation is for handling a {@link Fold} annotation
+     */
+    private Object[] prepareArguments(Invoke invoke, Class< ? >[] parameterTypes, ResolvedJavaMethod target, boolean folding) {
+        NodeInputList<ValueNode> arguments = invoke.callTarget().arguments();
+        Object[] reflectionCallArguments = new Object[arguments.size()];
+        for (int i = 0; i < reflectionCallArguments.length; ++i) {
+            int parameterIndex = i;
+            if (!invoke.callTarget().isStatic()) {
+                parameterIndex--;
+            }
+            ValueNode argument = tryBoxingElimination(parameterIndex, target, arguments.get(i));
+            if (folding || CodeUtil.getParameterAnnotation(ConstantNodeParameter.class, parameterIndex, target) != null) {
+                assert argument instanceof ConstantNode : "parameter " + parameterIndex + " must be a compile time constant for calling " + invoke.callTarget().targetMethod() + ": " + argument;
+                ConstantNode constantNode = (ConstantNode) argument;
+                Constant constant = constantNode.asConstant();
+                Object o = constant.boxedValue();
+                if (o instanceof Class< ? >) {
+                    reflectionCallArguments[i] = runtime.getResolvedJavaType((Class< ? >) o);
+                    parameterTypes[i] = ResolvedJavaType.class;
+                } else {
+                    if (parameterTypes[i] == boolean.class) {
+                        reflectionCallArguments[i] = Boolean.valueOf(constant.asInt() != 0);
+                    } else if (parameterTypes[i] == byte.class) {
+                        reflectionCallArguments[i] = Byte.valueOf((byte) constant.asInt());
+                    } else if (parameterTypes[i] == short.class) {
+                        reflectionCallArguments[i] = Short.valueOf((short) constant.asInt());
+                    } else if (parameterTypes[i] == char.class) {
+                        reflectionCallArguments[i] = Character.valueOf((char) constant.asInt());
+                    } else {
+                        reflectionCallArguments[i] = o;
+                    }
+                }
+            } else {
+                reflectionCallArguments[i] = argument;
+                parameterTypes[i] = ValueNode.class;
+            }
+        }
+        return reflectionCallArguments;
+    }
+
+    private static Class< ? > getNodeClass(ResolvedJavaMethod target, NodeIntrinsic intrinsic) {
+        Class< ? > result = intrinsic.value();
+        if (result == NodeIntrinsic.class) {
+            result = target.holder().toJava();
+        }
+        assert Node.class.isAssignableFrom(result);
+        return result;
+    }
+
+    private ValueNode tryBoxingElimination(int parameterIndex, ResolvedJavaMethod target, ValueNode node) {
+        if (parameterIndex >= 0) {
+            Type type = target.getGenericParameterTypes()[parameterIndex];
+            if (type instanceof TypeVariable) {
+                TypeVariable typeVariable = (TypeVariable) type;
+                if (typeVariable.getBounds().length == 1) {
+                    Type boundType = typeVariable.getBounds()[0];
+                    if (boundType instanceof Class && ((Class) boundType).getSuperclass() == null) {
+                        // Unbound generic => try boxing elimination
+                        if (node.usages().size() == 2) {
+                            if (node instanceof Invoke) {
+                                Invoke invokeNode = (Invoke) node;
+                                MethodCallTargetNode callTarget = invokeNode.callTarget();
+                                if (pool.isBoxingMethod(callTarget.targetMethod())) {
+                                    FrameState stateAfter = invokeNode.stateAfter();
+                                    assert stateAfter.usages().size() == 1;
+                                    invokeNode.node().replaceAtUsages(null);
+                                    ValueNode result = callTarget.arguments().get(0);
+                                    StructuredGraph graph = (StructuredGraph) node.graph();
+                                    if (invokeNode instanceof InvokeWithExceptionNode) {
+                                        // Destroy exception edge & clear stateAfter.
+                                        InvokeWithExceptionNode invokeWithExceptionNode = (InvokeWithExceptionNode) invokeNode;
+
+                                        invokeWithExceptionNode.killExceptionEdge();
+                                        graph.removeSplit(invokeWithExceptionNode, InvokeWithExceptionNode.NORMAL_EDGE);
+                                    } else {
+                                        graph.removeFixed((InvokeNode) invokeNode);
+                                    }
+                                    stateAfter.safeDelete();
+                                    GraphUtil.propagateKill(callTarget);
+                                    return result;
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+        return node;
+    }
+
+    private static Node createNodeInstance(Class< ? > nodeClass, Class< ? >[] parameterTypes, Object[] nodeConstructorArguments) {
+        Constructor< ? > constructor;
+        try {
+            constructor = nodeClass.getDeclaredConstructor(parameterTypes);
+            constructor.setAccessible(true);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+        try {
+            return (ValueNode) constructor.newInstance(nodeConstructorArguments);
+        } catch (Exception e) {
+            throw new RuntimeException(constructor + Arrays.toString(nodeConstructorArguments), e);
+        }
+    }
+
+    /**
+     * Calls a Java method via reflection.
+     */
+    private static Constant callMethod(Kind returnKind, Class< ? > holder, String name, Class< ? >[] parameterTypes, Object receiver, Object[] arguments) {
+        Method method;
+        try {
+            method = holder.getDeclaredMethod(name, parameterTypes);
+            method.setAccessible(true);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+        try {
+            Object result = method.invoke(receiver, arguments);
+            if (result == null) {
+                return null;
+            }
+            return Constant.forBoxed(returnKind, result);
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private static String sourceLocation(Node n) {
+        String loc = GraphUtil.approxSourceLocation(n);
+        return loc == null ? "<unknown>" : loc;
+    }
+
+    public void cleanUpReturnCheckCast(Node newInstance) {
+        if (newInstance instanceof ValueNode && ((ValueNode) newInstance).kind() != Kind.Object) {
+            StructuredGraph graph = (StructuredGraph) newInstance.graph();
+            for (CheckCastNode checkCastNode : newInstance.usages().filter(CheckCastNode.class).snapshot()) {
+                for (ValueProxyNode vpn : checkCastNode.usages().filter(ValueProxyNode.class).snapshot()) {
+                    graph.replaceFloating(vpn, checkCastNode);
+                }
+                for (Node checkCastUsage : checkCastNode.usages().snapshot()) {
+                    if (checkCastUsage instanceof ValueAnchorNode) {
+                        ValueAnchorNode valueAnchorNode = (ValueAnchorNode) checkCastUsage;
+                        graph.removeFixed(valueAnchorNode);
+                    } else if (checkCastUsage instanceof MethodCallTargetNode) {
+                        MethodCallTargetNode checkCastCallTarget = (MethodCallTargetNode) checkCastUsage;
+                        assert pool.isUnboxingMethod(checkCastCallTarget.targetMethod()) :
+                            "checkcast at " + sourceLocation(checkCastNode) + " not used by an unboxing method but by a call at " +
+                            sourceLocation(checkCastCallTarget.usages().first()) + " to " + checkCastCallTarget.targetMethod();
+                        Invoke invokeNode = checkCastCallTarget.invoke();
+                        invokeNode.node().replaceAtUsages(newInstance);
+                        if (invokeNode instanceof InvokeWithExceptionNode) {
+                            // Destroy exception edge & clear stateAfter.
+                            InvokeWithExceptionNode invokeWithExceptionNode = (InvokeWithExceptionNode) invokeNode;
+
+                            invokeWithExceptionNode.killExceptionEdge();
+                            graph.removeSplit(invokeWithExceptionNode, InvokeWithExceptionNode.NORMAL_EDGE);
+                        } else {
+                            graph.removeFixed((InvokeNode) invokeNode);
+                        }
+                        checkCastCallTarget.safeDelete();
+                    } else if (checkCastUsage instanceof FrameState) {
+                        checkCastUsage.replaceFirstInput(checkCastNode, null);
+                    } else {
+                        assert false : sourceLocation(checkCastUsage) + " has unexpected usage " + checkCastUsage + " of checkcast at " + sourceLocation(checkCastNode);
+                    }
+                }
+                FixedNode next = checkCastNode.next();
+                checkCastNode.setNext(null);
+                checkCastNode.replaceAtPredecessor(next);
+                GraphUtil.killCFG(checkCastNode);
+            }
+        }
+    }
+}