Don't use SCC iterators when we're only interested in reachability. Use df_begin/df_end inline to find reachable nodes. Differential Revision: https://reviews.llvm.org/D104704
Don't use SCC iterators when we're only interested in reachability. Use df_begin/df_end inline to find reachable nodes. Differential Revision: https://reviews.llvm.org/D104704