On 06.06.2011, at 10:54, ankur deshwal <a.s.deshwal at gmail.com> wrote: > The flags "-view-sched-dags".. described in the doc doesn't seem to work. ( "llc -help" doesn't list it ). The -view options are only available in llvm builds with assertions. Also graphiz must be installed on your system (and in path) at configure time.