1 files changed, 55 insertions, 0 deletions
diff --git a/deps/v8/src/compiler/node.cc b/deps/v8/src/compiler/node.cc
new file mode 100644
index 000000000..4cb5748b4
--- /dev/null
+++ b/deps/v8/src/compiler/node.cc
@@ -0,0 +1,55 @@
+// 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.
+
+#include "src/compiler/node.h"
+
+#include "src/compiler/generic-node-inl.h"
+
+namespace v8 {
+namespace internal {
+namespace compiler {
+
+void Node::CollectProjections(int projection_count, Node** projections) {
+  for (int i = 0; i < projection_count; ++i) projections[i] = NULL;
+  for (UseIter i = uses().begin(); i != uses().end(); ++i) {
+    if ((*i)->opcode() != IrOpcode::kProjection) continue;
+    int32_t index = OpParameter<int32_t>(*i);
+    DCHECK_GE(index, 0);
+    DCHECK_LT(index, projection_count);
+    DCHECK_EQ(NULL, projections[index]);
+    projections[index] = *i;
+  }
+}
+
+
+Node* Node::FindProjection(int32_t projection_index) {
+  for (UseIter i = uses().begin(); i != uses().end(); ++i) {
+    if ((*i)->opcode() == IrOpcode::kProjection &&
+        OpParameter<int32_t>(*i) == projection_index) {
+      return *i;
+    }
+  }
+  return NULL;
+}
+
+
+OStream& operator<<(OStream& os, const Operator& op) { return op.PrintTo(os); }
+
+
+OStream& operator<<(OStream& os, const Node& n) {
+  os << n.id() << ": " << *n.op();
+  if (n.op()->InputCount() != 0) {
+    os << "(";
+    for (int i = 0; i < n.op()->InputCount(); ++i) {
+      if (i != 0) os << ", ";
+      os << n.InputAt(i)->id();
+    }
+    os << ")";
+  }
+  return os;
+}
+
+}  // namespace compiler
+}  // namespace internal
+}  // namespace v8