1 files changed, 57 insertions, 0 deletions
diff --git a/Source/JavaScriptCore/b3/B3BottomProvider.h b/Source/JavaScriptCore/b3/B3BottomProvider.h
new file mode 100644
index 000000000..9a977f0eb
--- /dev/null
+++ b/Source/JavaScriptCore/b3/B3BottomProvider.h
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 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(B3_JIT)
+
+#include "B3InsertionSet.h"
+
+namespace JSC { namespace B3 {
+
+// This exists because we cannot convert values to constants in-place.
+// FIXME: https://bugs.webkit.org/show_bug.cgi?id=159119
+
+class BottomProvider {
+public:
+    BottomProvider(InsertionSet& insertionSet, size_t index)
+        : m_insertionSet(&insertionSet)
+        , m_index(index)
+    {
+    }
+    
+    Value* operator()(Origin origin, Type type) const
+    {
+        return m_insertionSet->insertBottom(m_index, origin, type);
+    }
+    
+private:
+    InsertionSet* m_insertionSet;
+    size_t m_index;
+};
+
+} } // namespace JSC::B3
+
+#endif // ENABLE(B3_JIT)