https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118215
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Version|unknown |15.0
Last reconfirmed| |2024-12-30
Status|UNCONFIRMED |NEW
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Well, the issue is that for the reduction to be vectorized we need the store to
be moved out of the loop which requires an alias versioning, but the
store-motion pass doesn't do this.
I'd be hesitant to add alias versioning to store-motion, but I guess there's
not much better alternatives, so doing like loop distribution does might be
possible, but for a very restricted set of cases only.
