https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69161
Jeffrey A. Law <law at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |law at redhat dot com --- Comment #16 from Jeffrey A. Law <law at redhat dot com> --- I agree with Jakub in c#1, given the docs for vec_duplicate, I can't see how this is valid RTL. I also agree with the general direction in c#3, ie, using a non-special predicate so that the modes are checked on those insns where comparisons appear as a SET_DEST or SET_SRC.