JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / dfg / DFGInsertOSRHintsForUpdate.cpp

diff --git a/dfg/DFGInsertOSRHintsForUpdate.cpp b/dfg/DFGInsertOSRHintsForUpdate.cpp
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+/*
+ * Copyright (C) 2014 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. 
+ */
+
+#include "config.h"
+#include "DFGInsertOSRHintsForUpdate.h"
+
+#if ENABLE(DFG_JIT)
+
+#include "JSCInlines.h"
+
+namespace JSC { namespace DFG {
+
+void insertOSRHintsForUpdate(
+    InsertionSet& insertionSet, unsigned nodeIndex, NodeOrigin origin,
+    AvailabilityMap& availability, Node* originalNode, Node* newNode)
+{
+    for (unsigned i = availability.m_locals.size(); i--;) {
+        int operand = availability.m_locals.operandForIndex(i);
+        
+        if (availability.m_locals[i].hasNode() && availability.m_locals[i].node() == originalNode) {
+            insertionSet.insertNode(
+                nodeIndex, SpecNone, MovHint, origin, OpInfo(operand),
+                newNode->defaultEdge());
+        }
+    }
+    
+    for (auto pair : availability.m_heap) {
+        if (pair.value.hasNode() && pair.value.node() == originalNode) {
+            insertionSet.insert(
+                nodeIndex, pair.key.createHint(insertionSet.graph(), origin, newNode));
+        }
+    }
+}
+
+} } // namespace JSC::DFG
+
+#endif // ENABLE(DFG_JIT)
+