On Wed, 12 Jan 2022, Andre Vieira (lists) wrote: > > On 12/01/2022 11:44, Richard Sandiford wrote: > > Another alternative would be to push autodetected_vector_mode when the > > length is 1 and keep 1 as the starting point. > > > > Richard > > I'm guessing we would still want to skip epilogue vectorization if > !VECTOR_MODE_P (autodetected_vector_mode) in that case?
Practically we currently only support fixed width word_mode there, but eventually one could end up with 64bit DImode for the main loop and 32bit V4QImode in the epilogue ... so not sure if it's worth special-casing. But I don't mind adding that skip. Richard.
