Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/src/compiler/all-nodes.h b/src/compiler/all-nodes.h
new file mode 100644
index 0000000..700f007
--- /dev/null
+++ b/src/compiler/all-nodes.h
@@ -0,0 +1,38 @@
+// 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.
+
+#ifndef V8_COMPILER_ALL_NODES_H_
+#define V8_COMPILER_ALL_NODES_H_
+
+#include "src/compiler/node.h"
+#include "src/zone-containers.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+// A helper utility that traverses the graph and gathers all nodes reachable
+// from end.
+class AllNodes {
+ public:
+ // Constructor. Traverses the graph and builds the {live} sets.
+ AllNodes(Zone* local_zone, const Graph* graph);
+
+ bool IsLive(Node* node) {
+ if (!node) return false;
+ size_t id = node->id();
+ return id < is_live.size() && is_live[id];
+ }
+
+ NodeVector live; // Nodes reachable from end.
+
+ private:
+ BoolVector is_live;
+};
+
+} // namespace compiler
+} // namespace internal
+} // namespace v8
+
+#endif // V8_COMPILER_ALL_NODES_H_