https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113079
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
Last reconfirmed| |2023-12-19
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
It's includes a lane reduction so we need to have those zero at least on
GIMPLE (if we'd do it there) because the tree codes do not specify which
lanes are reduced. The actual x86 instruction is probably fine so if
you make V8QI operation available in the backend that should work without
zeroing.
