On Fri, Jul 31, 2015 at 7:26 PM, Jeff Law <l...@redhat.com> wrote: > > So there's a tight relationship between the implementation of > bbs_ok_for_cmove_arith and insn_valid_noce_process_p. If there wasn't, then > we'd probably be looking to use note_stores and note_uses.
Perhaps I'm missing something, but what is wrong with using DF here instead of note_stores/note_uses? All the info on refs/mods of registers is available in the DF caches. Ciao! Steven
