be_ssa_construction_add_copy(&senv, to_spill);
be_ssa_construction_add_copies(&senv, copies, ARR_LEN(copies));
be_ssa_construction_fix_users(&senv, to_spill);
be_ssa_construction_add_copy(&senv, to_spill);
be_ssa_construction_add_copies(&senv, copies, ARR_LEN(copies));
be_ssa_construction_fix_users(&senv, to_spill);