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diff --git a/Source/JavaScriptCore/jit/JITNegGenerator.h b/Source/JavaScriptCore/jit/JITNegGenerator.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(JIT)
+
+#include "CCallHelpers.h"
+#include "JITMathIC.h"
+#include "JITMathICInlineResult.h"
+
+namespace JSC {
+
+class JITNegGenerator {
+public:
+    JITNegGenerator() = default;
+
+    JITNegGenerator(JSValueRegs result, JSValueRegs src, GPRReg scratchGPR)
+        : m_result(result)
+        , m_src(src)
+        , m_scratchGPR(scratchGPR)
+    { }
+
+    JITMathICInlineResult generateInline(CCallHelpers&, MathICGenerationState&, const ArithProfile*);
+    bool generateFastPath(CCallHelpers&, CCallHelpers::JumpList& endJumpList, CCallHelpers::JumpList& slowPathJumpList, const ArithProfile*, bool shouldEmitProfiling);
+
+private:
+    JSValueRegs m_result;
+    JSValueRegs m_src;
+    GPRReg m_scratchGPR;
+};
+
+} // namespace JSC
+
+#endif // ENABLE(JIT)