--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/graal/com.oracle.graal.graphbuilderconf/src/com/oracle/graal/graphbuilderconf/GraphBuilderContext.java	Sun Mar 15 11:36:54 2015 +0100
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 2015, 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.graphbuilderconf;
+
+import com.oracle.graal.api.code.*;
+import com.oracle.graal.api.meta.*;
+import com.oracle.graal.api.replacements.*;
+import com.oracle.graal.nodes.*;
+import com.oracle.graal.nodes.calc.*;
+import com.oracle.graal.nodes.spi.*;
+
+/**
+ * Used by a {@link GraphBuilderPlugin} to interface with a graph builder object.
+ */
+public interface GraphBuilderContext {
+
+    /**
+     * Information about a snippet or method substitution currently being processed by the graph
+     * builder.
+     */
+    public interface Replacement {
+
+        /**
+         * Gets the method being replaced.
+         */
+        ResolvedJavaMethod getOriginalMethod();
+
+        /**
+         * Gets the replacement method.
+         */
+        ResolvedJavaMethod getReplacementMethod();
+
+        /**
+         * Determines if this replacement is being inlined as a compiler intrinsic. A compiler
+         * intrinsic is atomic with respect to deoptimization. Deoptimization within a compiler
+         * intrinsic will restart the interpreter at the intrinsified call.
+         */
+        boolean isIntrinsic();
+    }
+
+    <T extends ControlSinkNode> T append(T fixed);
+
+    <T extends ControlSplitNode> T append(T fixed);
+
+    <T extends FixedWithNextNode> T append(T fixed);
+
+    <T extends FloatingNode> T append(T value);
+
+    <T extends ValueNode> T append(T value);
+
+    StampProvider getStampProvider();
+
+    MetaAccessProvider getMetaAccess();
+
+    Assumptions getAssumptions();
+
+    ConstantReflectionProvider getConstantReflection();
+
+    SnippetReflectionProvider getSnippetReflection();
+
+    void push(Kind kind, ValueNode value);
+
+    StructuredGraph getGraph();
+
+    /**
+     * Gets the parsing context for the method that inlines the method being parsed by this context.
+     */
+    GraphBuilderContext getParent();
+
+    /**
+     * Gets the root method for the graph building process.
+     */
+    ResolvedJavaMethod getRootMethod();
+
+    /**
+     * Gets the method currently being parsed.
+     */
+    ResolvedJavaMethod getMethod();
+
+    /**
+     * Gets the index of the bytecode instruction currently being parsed.
+     */
+    int bci();
+
+    /**
+     * Gets the inline depth of this context. 0 implies this is the context for the
+     * {@linkplain #getRootMethod() root method}.
+     */
+    int getDepth();
+
+    /**
+     * Determines if the current parsing context is a snippet or method substitution.
+     */
+    default boolean parsingReplacement() {
+        return getReplacement() == null;
+    }
+
+    /**
+     * Gets the replacement of the current parsing context or {@code null} if not
+     * {@link #parsingReplacement() parsing a replacement}.
+     */
+    Replacement getReplacement();
+
+    /**
+     * @see GuardingPiNode#nullCheckedValue(ValueNode)
+     */
+    static ValueNode nullCheckedValue(GraphBuilderContext builder, ValueNode value) {
+        ValueNode nonNullValue = GuardingPiNode.nullCheckedValue(value);
+        if (nonNullValue != value) {
+            builder.append((FixedWithNextNode) nonNullValue);
+        }
+        return nonNullValue;
+    }
+
+    boolean eagerResolving();
+
+    BailoutException bailout(String string);
+}