https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69677
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> --- (In reply to H.J. Lu from comment #9) > Another problem. STV is disabled even when stack is aligned: See the other PR, that has been discussed as one of the possible approaches, but as TARGET_STV does not affect just the stv pass, but also expansion, it is not at all clear which of the approaches is better. Therefore, it was agreed on to disable STV in these rare cases altogether for GCC 6, and for GCC 7 somebody who cares enough can perform appropriate testing/benchmarking and tweak it.
