1 files changed, 0 insertions, 109 deletions
diff --git a/Source/JavaScriptCore/dfg/DFGPrePostNumbering.h b/Source/JavaScriptCore/dfg/DFGPrePostNumbering.h
deleted file mode 100644
index de8282c4a..000000000
--- a/Source/JavaScriptCore/dfg/DFGPrePostNumbering.h
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * 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. 
- */
-
-#ifndef DFGPrePostNumbering_h
-#define DFGPrePostNumbering_h
-
-#if ENABLE(DFG_JIT)
-
-#include "DFGBasicBlock.h"
-#include "DFGBlockMap.h"
-#include <wtf/FastMalloc.h>
-#include <wtf/Noncopyable.h>
-
-namespace JSC { namespace DFG {
-
-enum EdgeKind {
-    ForwardEdge,
-    CrossEdge,
-    BackEdge
-};
-
-class PrePostNumbering {
-    WTF_MAKE_NONCOPYABLE(PrePostNumbering);
-    WTF_MAKE_FAST_ALLOCATED;
-public:
-    PrePostNumbering(Graph&);
-    ~PrePostNumbering();
-
-    unsigned preNumber(BasicBlock* block) const { return m_map[block].m_preNumber; }
-    unsigned postNumber(BasicBlock* block) const { return m_map[block].m_postNumber; }
-    
-    // Is from a strict ancestor of to?
-    bool isStrictAncestorOf(BasicBlock* from, BasicBlock* to) const
-    {
-        return preNumber(from) < preNumber(to)
-            && postNumber(from) > postNumber(to);
-    }
-    
-    bool isAncestorOf(BasicBlock* from, BasicBlock* to) const
-    {
-        return from == to || isStrictAncestorOf(from, to);
-    }
-    
-    bool isStrictDescendantOf(BasicBlock* from, BasicBlock* to) const
-    {
-        return isStrictAncestorOf(to, from);
-    }
-    
-    bool isDescendantOf(BasicBlock* from, BasicBlock* to) const
-    {
-        return isAncestorOf(to, from);
-    }
-    
-    // This will give a bogus answer if there is actually no such edge. If you want to determine
-    // if there is any such edge, you have to do it yourself.
-    EdgeKind edgeKind(BasicBlock* from, BasicBlock* to) const
-    {
-        if (isStrictDescendantOf(to, from))
-            return ForwardEdge;
-        
-        if (isAncestorOf(to, from))
-            return BackEdge;
-        
-        return CrossEdge;
-    }
-    
-private:
-    struct Numbering {
-        unsigned m_preNumber;
-        unsigned m_postNumber;
-    };
-
-    BlockMap<Numbering> m_map;
-};
-
-} } // namespace JSC::DFG
-
-namespace WTF {
-
-void printInternal(PrintStream&, JSC::DFG::EdgeKind);
-
-} // namespace WTF
-
-#endif // ENABLE(DFG_JIT)
-
-#endif // DFGPrePostNumbering_h
-