[Bug tree-optimization/109088] GCC does not always vectorize conditional reduction

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109088

--- Comment #16 from Richard Biener <rguenth at gcc dot gnu.org> ---
it's not exactly clear what the transform is you propose.  it looks like a
re-association but SSA names do not match up but the transform only replaces
a single op with 0!?