[turbofan] Initial support for Array constructor specialization.

src/compiler/node-properties.cc

 // Copyright 2015 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.
 
 #include "src/compiler/common-operator.h"
 #include "src/compiler/graph.h"
 #include "src/compiler/linkage.h"
 #include "src/compiler/node-properties.h"
 #include "src/compiler/operator-properties.h"
 #include "src/compiler/verifier.h"
@@ skipping 121 matching lines @@
 
 
 // static
 void NodeProperties::ReplaceValueInput(Node* node, Node* value, int index) {
   DCHECK(index < node->op()->ValueInputCount());
   node->ReplaceInput(FirstValueIndex(node) + index, value);
 }
 
 
 // static
+void NodeProperties::ReplaceValueInputs(Node* node, Node* value) {
+  int value_input_count = node->op()->ValueInputCount();
+  DCHECK_LE(1, value_input_count);
+  node->ReplaceInput(0, value);
+  while (--value_input_count > 0) {
+    node->RemoveInput(value_input_count);
+  }
+}
+
+
+// static
 void NodeProperties::ReplaceContextInput(Node* node, Node* context) {
   node->ReplaceInput(FirstContextIndex(node), context);
 }
 
 
 // static
 void NodeProperties::ReplaceControlInput(Node* node, Node* control) {
   node->ReplaceInput(FirstControlIndex(node), control);
 }
 
@@ skipping 244 matching lines @@
 // static
 bool NodeProperties::IsInputRange(Edge edge, int first, int num) {
   if (num == 0) return false;
   int const index = edge.index();
   return first <= index && index < first + num;
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8