dag: simplified fuse_greedy(): since we call transitive_reduction() in each iteration, the merge will never introduce cyclic dependencies.
dag: simplified fuse_greedy(): since we call transitive_reduction() in each iteration, the merge will never introduce cyclic dependencies.

madsbk/bohrium,madsbk/bohrium,bh107/bohrium,bh107/bohrium,madsbk/bohrium,bh107/bohrium,bh107/bohrium,madsbk/bohrium