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/bytecode/ValueProfile.cpp | 52 +++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 Source/JavaScriptCore/bytecode/ValueProfile.cpp

(limited to 'Source/JavaScriptCore/bytecode/ValueProfile.cpp')

diff --git a/Source/JavaScriptCore/bytecode/ValueProfile.cpp b/Source/JavaScriptCore/bytecode/ValueProfile.cpp
new file mode 100644
index 000000000..2d7770aed
--- /dev/null
+++ b/Source/JavaScriptCore/bytecode/ValueProfile.cpp
@@ -0,0 +1,52 @@
+/*
+ * 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.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 "ValueProfile.h"
+
+namespace JSC {
+
+#if ENABLE(VALUE_PROFILER)
+PredictedType ValueProfile::computeUpdatedPrediction()
+{
+    for (unsigned i = 0; i < totalNumberOfBuckets; ++i) {
+        JSValue value = JSValue::decode(m_buckets[i]);
+        if (!value)
+            continue;
+        
+        m_numberOfSamplesInPrediction++;
+        mergePrediction(m_prediction, predictionFromValue(value));
+        
+        m_buckets[i] = JSValue::encode(JSValue());
+    }
+    
+    return m_prediction;
+}
+#endif // ENABLE(VALUE_PROFILER)
+
+} // namespace JSC
-- 
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