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diff --git a/Source/JavaScriptCore/ftl/FTLState.h b/Source/JavaScriptCore/ftl/FTLState.h
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+++ b/Source/JavaScriptCore/ftl/FTLState.h
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+/*
+ * Copyright (C) 2013-2016 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ */
+
+#ifndef FTLState_h
+#define FTLState_h
+
+#if ENABLE(FTL_JIT)
+
+#include "B3Procedure.h"
+#include "DFGCommon.h"
+#include "DFGGraph.h"
+#include "FTLAbbreviatedTypes.h"
+#include "FTLGeneratedFunction.h"
+#include "FTLJITCode.h"
+#include "FTLJITFinalizer.h"
+#include <wtf/Box.h>
+#include <wtf/Noncopyable.h>
+
+namespace JSC {
+
+namespace B3 {
+class PatchpointValue;
+class StackSlot;
+} // namespace B3
+
+namespace FTL {
+
+class PatchpointExceptionHandle;
+
+inline bool verboseCompilationEnabled()
+{
+    return DFG::verboseCompilationEnabled(DFG::FTLMode);
+}
+
+inline bool shouldDumpDisassembly()
+{
+    return DFG::shouldDumpDisassembly(DFG::FTLMode);
+}
+
+class State {
+    WTF_MAKE_NONCOPYABLE(State);
+    
+public:
+    State(DFG::Graph& graph);
+    ~State();
+    
+    // None of these things is owned by State. It is the responsibility of
+    // FTL phases to properly manage the lifecycle of the module and function.
+    DFG::Graph& graph;
+    std::unique_ptr<B3::Procedure> proc;
+    bool allocationFailed { false }; // Throw out the compilation once B3 returns.
+    RefPtr<JITCode> jitCode;
+    GeneratedFunction generatedFunction;
+    JITFinalizer* finalizer;
+    // Top-level exception handler. Jump here if you know that you have to genericUnwind() and there
+    // are no applicable catch blocks anywhere in the Graph.
+    RefPtr<PatchpointExceptionHandle> defaultExceptionHandle;
+    Box<CCallHelpers::Label> exceptionHandler { Box<CCallHelpers::Label>::create() };
+    B3::StackSlot* capturedValue { nullptr };
+};
+
+} } // namespace JSC::FTL
+
+#endif // ENABLE(FTL_JIT)
+
+#endif // FTLState_h
+