[Bug tree-optimization/81184] [8 regression] gcc.dg/pr21643.c and gcc.dg/tree-ssa/phi-opt-11.c fail starting with r249450

[krebbel at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81184

--- Comment #10 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
I've verified that the problem is fixed on Power. So I've opened a separate BZ
for this #85368