Function rustc_incremental::load_dep_graph

pub fn load_dep_graph<'a, 'tcx>(tcx: TyCtxt<'a, 'tcx, 'tcx>)

Unstable (rustc_private)

If we are in incremental mode, and a previous dep-graph exists, then load up those nodes/edges that are still valid into the dep-graph for this session. (This is assumed to be running very early in compilation, before we've really done any work, but actually it doesn't matter all that much.) See README.md for more general overview.