Added legal stuff, fixed some formatting issues. Removed the graph generator stuff as it was only meant for debugging the solver.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78359 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/PBQP/SimpleGraph.h b/lib/CodeGen/PBQP/SimpleGraph.h
index 595269c..1ca9cae 100644
--- a/lib/CodeGen/PBQP/SimpleGraph.h
+++ b/lib/CodeGen/PBQP/SimpleGraph.h
@@ -1,3 +1,17 @@
+//===-- SimpleGraph.h - Simple PBQP Graph ----------------------*- C++ --*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// Simple PBQP graph class representing a PBQP problem. Graphs of this type
+// can be passed to a PBQPSolver instance to solve the PBQP problem.
+//
+//===----------------------------------------------------------------------===//
+
 #ifndef LLVM_CODEGEN_PBQP_SIMPLEGRAPH_H
 #define LLVM_CODEGEN_PBQP_SIMPLEGRAPH_H