ons[2] = n; \
stat_merge_nodes(&n, 1, ons, SIZ(ons), STAT_OPT_ALGSIM); \
__dbg_info_merge_sets(&n, 1, ons, SIZ(ons), dbg_algebraic_simplification); \
ons[2] = n; \
stat_merge_nodes(&n, 1, ons, SIZ(ons), STAT_OPT_ALGSIM); \
__dbg_info_merge_sets(&n, 1, ons, SIZ(ons), dbg_algebraic_simplification); \