https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97079
--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> --- (In reply to Alex Coplan from comment #3) > It seems this was introduced with > r11-2817-gcdb2e365fc0dba2ee052827e5ca65234ca82d605: > > commit cdb2e365fc0dba2ee052827e5ca65234ca82d605 > Author: Martin Liska <mli...@suse.cz> > Date: Fri Jul 31 09:53:39 2020 > > SLP: support entire BB. This revision can be fixed with: diff --git a/gcc/internal-fn.c b/gcc/internal-fn.c index 92cb3cd845a..792d2ca568a 100644 --- a/gcc/internal-fn.c +++ b/gcc/internal-fn.c @@ -3795,6 +3795,7 @@ internal_fn_stored_value_index (internal_fn fn) switch (fn) { case IFN_MASK_STORE: + case IFN_MASK_STORE_LANES: case IFN_SCATTER_STORE: case IFN_MASK_SCATTER_STORE: case IFN_LEN_STORE: But it does not help for master, I'm investigating right now..