https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110474
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu.org,
| |rsandifo at gcc dot gnu.org
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think it's reasonable to not apply unrolling to the vectorized epilogue, but
note we have to be careful to adjust the maximum number of iterations for it we
compute. Note this will also necessarily make the vectorized epilogue iterate.
We could also leave the decision to the target, providing a
suggested_epilog_"unroll" factor. That could also be used to for example
get a 128bit vector epilogue for a 512bit main loop to address similar
concerns there.
