Initial skeleton of Subzero.

src/IceTypes.h

+//===- subzero/src/IceTypes.h - Primitive ICE types -------------*- C++ -*-===//
+//
+//                        The Subzero Code Generator
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares a few properties of the primitive types allowed
+// in Subzero.  Every Subzero source file is expected to include
+// IceTypes.h.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SUBZERO_SRC_ICETYPES_H
+#define SUBZERO_SRC_ICETYPES_H
+
+#include "IceTypes.def"
+
+namespace Ice {
+
+enum Type {
+#define X(tag, size, str) tag,
+  ICETYPE_TABLE
+#undef X
+};
+
+size_t typeWidthInBytes(Type Ty);
+
+template <> Ostream &operator<<(class Ostream &Str, const Type &Ty);
+
+} // end of namespace Ice
+
+#endif // SUBZERO_SRC_ICETYPES_H