diff -r 000000000000 -r 6474c204b198 js/src/yarr/YarrJIT.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/js/src/yarr/YarrJIT.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,172 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ *
+ * Copyright (C) 2009 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 yarr_YarrJIT_h
+#define yarr_YarrJIT_h
+
+#include "assembler/wtf/Platform.h"
+
+#if ENABLE_YARR_JIT
+
+#include "assembler/assembler/MacroAssemblerCodeRef.h"
+
+#include "yarr/MatchResult.h"
+#include "yarr/Yarr.h"
+
+#if WTF_CPU_X86 && !WTF_COMPILER_MSVC && !WTF_COMPILER_SUNCC
+#define YARR_CALL __attribute__ ((regparm (3)))
+#else
+#define YARR_CALL
+#endif
+
+#include "jit/JitCommon.h"
+
+namespace JSC {
+
+class JSGlobalData;
+class ExecutablePool;
+
+namespace Yarr {
+
+class YarrCodeBlock {
+#if defined(WTF_CPU_X86_64) && !defined(_WIN64)
+    typedef MatchResult JITMatchResult;
+#else
+    typedef EncodedMatchResult JITMatchResult;
+#endif
+
+    typedef JITMatchResult (*YarrJITCode8)(const LChar* input, unsigned start, unsigned length, int* output) YARR_CALL;
+    typedef JITMatchResult (*YarrJITCode16)(const UChar* input, unsigned start, unsigned length, int* output) YARR_CALL;
+    typedef JITMatchResult (*YarrJITCodeMatchOnly8)(const LChar* input, unsigned start, unsigned length) YARR_CALL;
+    typedef JITMatchResult (*YarrJITCodeMatchOnly16)(const UChar* input, unsigned start, unsigned length) YARR_CALL;
+
+public:
+    YarrCodeBlock()
+        : m_needFallBack(false)
+    {
+    }
+
+    ~YarrCodeBlock()
+    {
+    }
+
+    void setFallBack(bool fallback) { m_needFallBack = fallback; }
+    bool isFallBack() { return m_needFallBack; }
+
+#ifdef YARR_8BIT_CHAR_SUPPORT
+    bool has8BitCode() const { return m_ref8.allocSize(); }
+    void set8BitCode(MacroAssemblerCodeRef ref) { m_ref8 = ref; }
+    bool has8BitCodeMatchOnly() const { return m_matchOnly8.allocSize(); }
+    void set8BitCodeMatchOnly(MacroAssemblerCodeRef matchOnly) { m_matchOnly8 = matchOnly; }
+#endif
+
+    bool has16BitCode() const { return m_ref16.allocSize(); }
+    void set16BitCode(MacroAssemblerCodeRef ref) { m_ref16 = ref; }
+
+    bool has16BitCodeMatchOnly() const { return m_matchOnly16.allocSize(); }
+    void set16BitCodeMatchOnly(MacroAssemblerCodeRef matchOnly) { m_matchOnly16 = matchOnly; }
+
+#if YARR_8BIT_CHAR_SUPPORT
+    MatchResult execute(const LChar* input, unsigned start, unsigned length, int* output)
+    {
+        ASSERT(has8BitCode());
+
+        return MatchResult(reinterpret_cast<YarrJITCode8>(m_ref8.code().executableAddress())(input, start, length, output));
+    }
+
+    MatchResult execute(const LChar* input, unsigned start, unsigned length)
+    {
+        ASSERT(has8BitCodeMatchOnly());
+
+        return MatchResult(reinterpret_cast<YarrJITCodeMatchOnly8>(m_matchOnly8.code().executableAddress())(input, start, length));
+    }
+#endif
+
+    MatchResult execute(const UChar* input, unsigned start, unsigned length, int* output)
+    {
+        ASSERT(has16BitCode());
+
+        YarrJITCode16 fn = JS_FUNC_TO_DATA_PTR(YarrJITCode16, m_ref16.code().executableAddress());
+        return MatchResult(CALL_GENERATED_YARR_CODE4(fn, input, start, length, output));
+    }
+
+    MatchResult execute(const UChar* input, unsigned start, unsigned length)
+    {
+        ASSERT(has16BitCodeMatchOnly());
+
+        YarrJITCodeMatchOnly16 fn = JS_FUNC_TO_DATA_PTR(YarrJITCodeMatchOnly16, m_matchOnly16.code().executableAddress());
+        return MatchResult(CALL_GENERATED_YARR_CODE3(fn, input, start, length));
+    }
+
+#if ENABLE_REGEXP_TRACING
+    void *getAddr() { return m_ref.code().executableAddress(); }
+#endif
+
+    void clear()
+    {
+#ifdef YARR_8BIT_CHAR_SUPPORT
+        m_ref8 = MacroAssemblerCodeRef();
+        m_matchOnly8 = MacroAssemblerCodeRef();
+#endif
+
+        m_ref16 = MacroAssemblerCodeRef();
+        m_matchOnly16 = MacroAssemblerCodeRef();
+        m_needFallBack = false;
+    }
+
+    void release() {
+#ifdef YARR_8BIT_CHAR_SUPPORT
+        m_ref8.release();
+        m_matchOnly8.release();
+#endif
+
+        m_ref16.release();
+        m_matchOnly16.release();
+    }
+
+private:
+#ifdef YARR_8BIT_CHAR_SUPPORT
+    MacroAssemblerCodeRef m_ref8;
+    MacroAssemblerCodeRef m_matchOnly8;
+#endif
+
+    MacroAssemblerCodeRef m_ref16;
+    MacroAssemblerCodeRef m_matchOnly16;
+    bool m_needFallBack;
+};
+
+enum YarrJITCompileMode {
+    MatchOnly,
+    IncludeSubpatterns
+};
+void jitCompile(YarrPattern&, YarrCharSize, JSGlobalData*, YarrCodeBlock& jitObject, YarrJITCompileMode = IncludeSubpatterns);
+
+} } // namespace JSC::Yarr
+
+#endif
+
+#endif /* yarr_YarrJIT_h */