https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107569
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> --- The cdce case is something I've mentioned today: https://gcc.gnu.org/pipermail/gcc-patches/2022-November/605338.html The comparisons in there are artificial and so unlike user comparisons we should (if they were marked somehow) be able to optimize them away if frange can prove their result. But that isn't something happening on the #c0 testcase, is it?
