[Bug tree-optimization/64700] Sink common code through PHI

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64700

--- Comment #16 from Drea Pinski <pinskia at gcc dot gnu.org> ---
The load part will be solved by
https://gcc.gnu.org/pipermail/gcc-patches/2026-June/720191.html .

comment #3 was solved by r17-1507-gc43fed44d9ac34.