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diff --git a/Source/JavaScriptCore/b3/B3ConstDoubleValue.h b/Source/JavaScriptCore/b3/B3ConstDoubleValue.h
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+++ b/Source/JavaScriptCore/b3/B3ConstDoubleValue.h
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+/*
+ * Copyright (C) 2015-2016 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. 
+ */
+
+#pragma once
+
+#if ENABLE(B3_JIT)
+
+#include "B3Value.h"
+
+namespace JSC { namespace B3 {
+
+class JS_EXPORT_PRIVATE ConstDoubleValue : public Value {
+public:
+    static bool accepts(Kind kind) { return kind == ConstDouble; }
+    
+    ~ConstDoubleValue();
+    
+    double value() const { return m_value; }
+
+    Value* negConstant(Procedure&) const override;
+    Value* addConstant(Procedure&, int32_t other) const override;
+    Value* addConstant(Procedure&, const Value* other) const override;
+    Value* subConstant(Procedure&, const Value* other) const override;
+    Value* divConstant(Procedure&, const Value* other) const override;
+    Value* modConstant(Procedure&, const Value* other) const override;
+    Value* mulConstant(Procedure&, const Value* other) const override;
+    Value* bitAndConstant(Procedure&, const Value* other) const override;
+    Value* bitOrConstant(Procedure&, const Value* other) const override;
+    Value* bitXorConstant(Procedure&, const Value* other) const override;
+    Value* bitwiseCastConstant(Procedure&) const override;
+    Value* doubleToFloatConstant(Procedure&) const override;
+    Value* absConstant(Procedure&) const override;
+    Value* ceilConstant(Procedure&) const override;
+    Value* floorConstant(Procedure&) const override;
+    Value* sqrtConstant(Procedure&) const override;
+
+    TriState equalConstant(const Value* other) const override;
+    TriState notEqualConstant(const Value* other) const override;
+    TriState lessThanConstant(const Value* other) const override;
+    TriState greaterThanConstant(const Value* other) const override;
+    TriState lessEqualConstant(const Value* other) const override;
+    TriState greaterEqualConstant(const Value* other) const override;
+    TriState equalOrUnorderedConstant(const Value* other) const override;
+
+protected:
+    void dumpMeta(CommaPrinter&, PrintStream&) const override;
+
+    Value* cloneImpl() const override;
+
+private:
+    friend class Procedure;
+
+    ConstDoubleValue(Origin origin, double value)
+        : Value(CheckedOpcode, ConstDouble, Double, origin)
+        , m_value(value)
+    {
+    }
+    
+    double m_value;
+};
+
+} } // namespace JSC::B3
+
+#endif // ENABLE(B3_JIT)