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diff --git a/Source/JavaScriptCore/b3/B3ConstDoubleValue.cpp b/Source/JavaScriptCore/b3/B3ConstDoubleValue.cpp
new file mode 100644
index 000000000..46183f334
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+++ b/Source/JavaScriptCore/b3/B3ConstDoubleValue.cpp
@@ -0,0 +1,190 @@
+/*
+ * 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. 
+ */
+
+#include "config.h"
+#include "B3ConstDoubleValue.h"
+
+#if ENABLE(B3_JIT)
+
+#include "B3ConstFloatValue.h"
+#include "B3ProcedureInlines.h"
+#include "B3ValueInlines.h"
+
+namespace JSC { namespace B3 {
+
+ConstDoubleValue::~ConstDoubleValue()
+{
+}
+
+Value* ConstDoubleValue::negConstant(Procedure& proc) const
+{
+    return proc.add<ConstDoubleValue>(origin(), -m_value);
+}
+
+Value* ConstDoubleValue::addConstant(Procedure& proc, int32_t other) const
+{
+    return proc.add<ConstDoubleValue>(origin(), m_value + static_cast<double>(other));
+}
+
+Value* ConstDoubleValue::addConstant(Procedure& proc, const Value* other) const
+{
+    if (!other->hasDouble())
+        return nullptr;
+    return proc.add<ConstDoubleValue>(origin(), m_value + other->asDouble());
+}
+
+Value* ConstDoubleValue::subConstant(Procedure& proc, const Value* other) const
+{
+    if (!other->hasDouble())
+        return nullptr;
+    return proc.add<ConstDoubleValue>(origin(), m_value - other->asDouble());
+}
+
+Value* ConstDoubleValue::mulConstant(Procedure& proc, const Value* other) const
+{
+    if (!other->hasDouble())
+        return nullptr;
+    return proc.add<ConstDoubleValue>(origin(), m_value * other->asDouble());
+}
+
+Value* ConstDoubleValue::bitAndConstant(Procedure& proc, const Value* other) const
+{
+    if (!other->hasDouble())
+        return nullptr;
+    double result = bitwise_cast<double>(bitwise_cast<uint64_t>(m_value) & bitwise_cast<uint64_t>(other->asDouble()));
+    return proc.add<ConstDoubleValue>(origin(), result);
+}
+
+Value* ConstDoubleValue::bitwiseCastConstant(Procedure& proc) const
+{
+    return proc.add<Const64Value>(origin(), bitwise_cast<int64_t>(m_value));
+}
+
+Value* ConstDoubleValue::doubleToFloatConstant(Procedure& proc) const
+{
+    return proc.add<ConstFloatValue>(origin(), static_cast<float>(m_value));
+}
+
+Value* ConstDoubleValue::absConstant(Procedure& proc) const
+{
+    return proc.add<ConstDoubleValue>(origin(), fabs(m_value));
+}
+
+Value* ConstDoubleValue::ceilConstant(Procedure& proc) const
+{
+    return proc.add<ConstDoubleValue>(origin(), ceil(m_value));
+}
+
+Value* ConstDoubleValue::floorConstant(Procedure& proc) const
+{
+    return proc.add<ConstDoubleValue>(origin(), floor(m_value));
+}
+
+Value* ConstDoubleValue::sqrtConstant(Procedure& proc) const
+{
+    return proc.add<ConstDoubleValue>(origin(), sqrt(m_value));
+}
+
+Value* ConstDoubleValue::divConstant(Procedure& proc, const Value* other) const
+{
+    if (!other->hasDouble())
+        return nullptr;
+    return proc.add<ConstDoubleValue>(origin(), m_value / other->asDouble());
+}
+
+Value* ConstDoubleValue::modConstant(Procedure& proc, const Value* other) const
+{
+    if (!other->hasDouble())
+        return nullptr;
+    return proc.add<ConstDoubleValue>(origin(), fmod(m_value, other->asDouble()));
+}
+
+TriState ConstDoubleValue::equalConstant(const Value* other) const
+{
+    if (!other->hasDouble())
+        return MixedTriState;
+    return triState(m_value == other->asDouble());
+}
+
+TriState ConstDoubleValue::notEqualConstant(const Value* other) const
+{
+    if (!other->hasDouble())
+        return MixedTriState;
+    return triState(m_value != other->asDouble());
+}
+
+TriState ConstDoubleValue::lessThanConstant(const Value* other) const
+{
+    if (!other->hasDouble())
+        return MixedTriState;
+    return triState(m_value < other->asDouble());
+}
+
+TriState ConstDoubleValue::greaterThanConstant(const Value* other) const
+{
+    if (!other->hasDouble())
+        return MixedTriState;
+    return triState(m_value > other->asDouble());
+}
+
+TriState ConstDoubleValue::lessEqualConstant(const Value* other) const
+{
+    if (!other->hasDouble())
+        return MixedTriState;
+    return triState(m_value <= other->asDouble());
+}
+
+TriState ConstDoubleValue::greaterEqualConstant(const Value* other) const
+{
+    if (!other->hasDouble())
+        return MixedTriState;
+    return triState(m_value >= other->asDouble());
+}
+
+TriState ConstDoubleValue::equalOrUnorderedConstant(const Value* other) const
+{
+    if (std::isnan(m_value))
+        return TrueTriState;
+
+    if (!other->hasDouble())
+        return MixedTriState;
+    double otherValue = other->asDouble();
+    return triState(std::isunordered(m_value, otherValue) || m_value == otherValue);
+}
+
+void ConstDoubleValue::dumpMeta(CommaPrinter& comma, PrintStream& out) const
+{
+    out.print(comma);
+    out.printf("%le", m_value);
+}
+
+Value* ConstDoubleValue::cloneImpl() const
+{
+    return new ConstDoubleValue(*this);
+}
+
+} } // namespace JSC::B3
+
+#endif // ENABLE(B3_JIT)