[turbofan] Initial support for Array constructor specialization.

src/compiler/node-properties.h

 // Copyright 2013 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_PROPERTIES_H_
 #define V8_COMPILER_NODE_PROPERTIES_H_
 
 #include "src/compiler/node.h"
 #include "src/types.h"
 
@@ skipping 62 matching lines @@
   }
 
   // Determines whether exceptions thrown by the given node are handled locally
   // within the graph (i.e. an IfException projection is present).
   static bool IsExceptionalCall(Node* node);
 
   // ---------------------------------------------------------------------------
   // Miscellaneous mutators.
 
   static void ReplaceValueInput(Node* node, Node* value, int index);
+  static void ReplaceValueInputs(Node* node, Node* value);

[Michael Starzinger, 2015/11/20 12:06:47]

The semantics of this function is "replace first value input and remove all
other value inputs". I think the current name is a bit misleading. Unfortunately
I don't have a better suggestion right now. But could we at least separate it
out of this block (i.e. move to line 91) and add a comment describing the
semantics?

[Benedikt Meurer, 2015/11/20 12:28:52]

Done.

   static void ReplaceContextInput(Node* node, Node* context);
   static void ReplaceControlInput(Node* node, Node* control);
   static void ReplaceEffectInput(Node* node, Node* effect, int index = 0);
   static void ReplaceFrameStateInput(Node* node, int index, Node* frame_state);
   static void RemoveFrameStateInput(Node* node, int index);
   static void RemoveNonValueInputs(Node* node);
   static void RemoveValueInputs(Node* node);
 
   // Merge the control node {node} into the end of the graph, introducing a
   // merge node or expanding an existing merge node if necessary.
@@ skipping 61 matching lines @@
 
  private:
   static inline bool IsInputRange(Edge edge, int first, int count);
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_NODE_PROPERTIES_H_