title: Getting Control Flow Graph from ANSI C code
body: <p>I'm building tool for testing ansi c applications. Simply load code, view control flow graph, run test, mark all vertexes which was hit. I'm trying to build CFG all by myself from parsing code. Unfortunately It gets messed up if code is nested. GCC gives ability to get CFG from compiled code. I might write parser for its output, but I need line numbers for setting breakpoints. Is there way for getting line numbers when outputting Control Flow Graph with <code>-fdump-tree-cfg</code> or <code>-fdump-tree-vcg</code>?</p>