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diff --git a/Source/JavaScriptCore/bytecode/BytecodeIntrinsicRegistry.h b/Source/JavaScriptCore/bytecode/BytecodeIntrinsicRegistry.h
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+++ b/Source/JavaScriptCore/bytecode/BytecodeIntrinsicRegistry.h
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+/*
+ * Copyright (C) 2015 Yusuke Suzuki <utatane.tea@gmail.com>.
+ *
+ * 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 BytecodeIntrinsicRegistry_h
+#define BytecodeIntrinsicRegistry_h
+
+#include "Identifier.h"
+#include <wtf/HashTable.h>
+#include <wtf/Noncopyable.h>
+
+namespace JSC {
+
+class CommonIdentifiers;
+class BytecodeGenerator;
+class BytecodeIntrinsicNode;
+class RegisterID;
+class Identifier;
+
+#define JSC_COMMON_BYTECODE_INTRINSIC_FUNCTIONS_EACH_NAME(macro) \
+    macro(assert) \
+    macro(isObject) \
+    macro(putByValDirect) \
+    macro(toString)
+
+#define JSC_COMMON_BYTECODE_INTRINSIC_CONSTANTS_EACH_NAME(macro) \
+    macro(undefined) \
+    macro(arrayIterationKindKey) \
+    macro(arrayIterationKindValue) \
+    macro(arrayIterationKindKeyValue) \
+    macro(promiseStatePending) \
+    macro(promiseStateFulfilled) \
+    macro(promiseStateRejected) \
+    macro(symbolIterator) \
+    macro(symbolSearch)
+
+class BytecodeIntrinsicRegistry {
+    WTF_MAKE_NONCOPYABLE(BytecodeIntrinsicRegistry);
+public:
+    explicit BytecodeIntrinsicRegistry(VM&);
+
+    typedef RegisterID* (BytecodeIntrinsicNode::* EmitterType)(BytecodeGenerator&, RegisterID*);
+
+    EmitterType lookup(const Identifier&) const;
+
+#define JSC_DECLARE_BYTECODE_INTRINSIC_CONSTANT_GENERATORS(name) JSValue name##Value(BytecodeGenerator&);
+    JSC_COMMON_BYTECODE_INTRINSIC_CONSTANTS_EACH_NAME(JSC_DECLARE_BYTECODE_INTRINSIC_CONSTANT_GENERATORS)
+#undef JSC_DECLARE_BYTECODE_INTRINSIC_CONSTANT_GENERATORS
+
+private:
+    VM& m_vm;
+    HashMap<RefPtr<UniquedStringImpl>, EmitterType, IdentifierRepHash> m_bytecodeIntrinsicMap;
+
+#define JSC_DECLARE_BYTECODE_INTRINSIC_CONSTANT_GENERATORS(name) Strong<Unknown> m_##name;
+    JSC_COMMON_BYTECODE_INTRINSIC_CONSTANTS_EACH_NAME(JSC_DECLARE_BYTECODE_INTRINSIC_CONSTANT_GENERATORS)
+#undef JSC_DECLARE_BYTECODE_INTRINSIC_CONSTANT_GENERATORS
+};
+
+} // namespace JSC
+
+#endif // BytecodeIntrinsicRegistry_h