From 40736c5763bf61337c8c14e16d8587db021a87d4 Mon Sep 17 00:00:00 2001
From: Simon Hausmann <simon.hausmann@nokia.com>
Date: Fri, 6 Jan 2012 14:44:00 +0100
Subject: Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4
 (http://svn.webkit.org/repository/webkit/trunk@104285)

---
 Source/JavaScriptCore/dfg/DFGOSREntry.h | 61 +++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 Source/JavaScriptCore/dfg/DFGOSREntry.h

(limited to 'Source/JavaScriptCore/dfg/DFGOSREntry.h')

diff --git a/Source/JavaScriptCore/dfg/DFGOSREntry.h b/Source/JavaScriptCore/dfg/DFGOSREntry.h
new file mode 100644
index 000000000..e38a6ceb9
--- /dev/null
+++ b/Source/JavaScriptCore/dfg/DFGOSREntry.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 2011 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 DFGOSREntry_h
+#define DFGOSREntry_h
+
+#include "DFGAbstractValue.h"
+#include "DFGOperands.h"
+#include <wtf/BitVector.h>
+
+namespace JSC {
+
+class ExecState;
+class CodeBlock;
+
+namespace DFG {
+
+#if ENABLE(DFG_JIT)
+struct OSREntryData {
+    unsigned m_bytecodeIndex;
+    unsigned m_machineCodeOffset;
+    Operands<AbstractValue> m_expectedValues;
+    BitVector m_localsForcedDouble;
+};
+
+inline unsigned getOSREntryDataBytecodeIndex(OSREntryData* osrEntryData)
+{
+    return osrEntryData->m_bytecodeIndex;
+}
+
+void* prepareOSREntry(ExecState*, CodeBlock*, unsigned bytecodeIndex);
+#else
+inline void* prepareOSREntry(ExecState*, CodeBlock*, unsigned) { return 0; }
+#endif
+
+} } // namespace JSC::DFG
+
+#endif // DFGOSREntry_h
+
-- 
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