Initial skeleton of Subzero.

IceCfgNode.h

Index: IceCfgNode.h
diff --git a/IceCfgNode.h b/IceCfgNode.h
new file mode 100644
index 0000000000000000000000000000000000000000..a921313b6600512b14084180f2ef566af8d40664
--- /dev/null
+++ b/IceCfgNode.h
@@ -0,0 +1,43 @@
+// -*- Mode: c++ -*-
+/* Copyright 2014 The Native Client 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 _IceCfgNode_h
+#define _IceCfgNode_h
+
+#include "IceDefs.h"
+
+class IceCfgNode {
+public:
+  static IceCfgNode *create(IceCfg *Cfg, uint32_t LabelIndex,
+                            IceString Name = "") {
+    return new IceCfgNode(Cfg, LabelIndex, Name);
+  }
+
+  uint32_t getIndex(void) const { return Number; }
+  IceString getName(void) const;
+
+  const IceNodeList &getInEdges(void) const { return InEdges; }
+  const IceNodeList &getOutEdges(void) const { return OutEdges; }
+
+  IceInstList &getInsts(void) { return Insts; }
+  void appendInst(IceInst *Inst);
+
+  void registerEdges(void);
+
+  void dump(IceOstream &Str) const;
+
+private:
+  IceCfgNode(IceCfg *Cfg, uint32_t LabelIndex, IceString Name);
+  IceCfg *const Cfg;
+  const uint32_t Number; // label index
+  IceString Name;        // for dumping only
+  IceNodeList InEdges;   // in no particular order
+  IceNodeList OutEdges;  // in no particular order
+  IcePhiList Phis;       // unordered set of phi instructions
+  IceInstList Insts;     // ordered list of non-phi instructions
+};
+
+#endif // _IceCfgNode_h