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

[jakub at gcc dot gnu.org]

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

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Most likely the test need better guards on -mbranch-cost= and/or
logical_op_short_circuit.