Add JSGraph::GetCachedNodes and NodeCache::GetCachedNodes. These routines are necessary in the dead…

src/compiler/node-cache.h

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_NODE_CACHE_H_
 #define V8_COMPILER_NODE_CACHE_H_
 
 #include "src/base/functional.h"
 #include "src/base/macros.h"
+#include "src/compiler/node.h"

[Benedikt Meurer, 2014/10/15 12:06:39]

Don't add the include here. Just forward declare ZoneVector and use
ZoneVector<Node*>* below..

 
 namespace v8 {
 namespace internal {
-
-// Forward declarations.
-class Zone;
-
-
 namespace compiler {
 
-// Forward declarations.
-class Node;
-
-
 // A cache for nodes based on a key. Useful for implementing canonicalization of
 // nodes such as constants, parameters, etc.
 template <typename Key, typename Hash = base::hash<Key>,
           typename Pred = std::equal_to<Key> >
 class NodeCache FINAL {
  public:
   explicit NodeCache(size_t max = 256)
       : entries_(nullptr), size_(0), max_(max) {}
 
   // Search for node associated with {key} and return a pointer to a memory
   // location in this cache that stores an entry for the key. If the location
   // returned by this method contains a non-NULL node, the caller can use that
   // node. Otherwise it is the responsibility of the caller to fill the entry
   // with a new node.
   // Note that a previous cache entry may be overwritten if the cache becomes
   // too full or encounters too many hash collisions.
   Node** Find(Zone* zone, Key key);
 
+  void GetCachedNodes(NodeVector* nodes);
+
  private:
   enum { kInitialSize = 16u, kLinearProbe = 5u };
 
   struct Entry;
 
   Entry* entries_;  // lazily-allocated hash entries.
   size_t size_;
   size_t max_;
   Hash hash_;
   Pred pred_;
 
   bool Resize(Zone* zone);
 };
 
 // Various default cache types.
 typedef NodeCache<int64_t> Int64NodeCache;
 typedef NodeCache<int32_t> Int32NodeCache;
 typedef NodeCache<void*> PtrNodeCache;
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_NODE_CACHE_H_