FOR_EACH_PRED 234 gc/backgraph.c FOR_EACH_PRED(pred, q, { if (p == pred) return; }); FOR_EACH_PRED 368 gc/backgraph.c FOR_EACH_PRED(q, p, { FOR_EACH_PRED 412 gc/backgraph.c FOR_EACH_PRED(q, p, {