[Bug tree-optimization/104265] Missed vectorization in 526.blender_r

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104265

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
Note the SLP discovery opportunity is from the "reduction" PHI to the
return which merges control flow to a zero/one flag.