On July 9, 2019 3:10:19 PM GMT+02:00, Michael Matz <m...@suse.de> wrote: >Hi, > >On Tue, 9 Jul 2019, Richard Biener wrote: > >> > So a "backedge" in this sense would be e->dest->index < >e->src->index. >> > No? >> >> To me the following would make sense. > >The basic block index is not a DFS index, so no, that's not a test for >backedge.
I think in CFG RTL mode the BB index designates the order of the BBs in the object file? So this is a way to identify backwards jumps? Richard. > >Ciao, >Michael.
