currentp          289 gc/backgraph.c         word *currentp;
currentp          316 gc/backgraph.c   word *currentp = (word *)(p + sizeof(oh));
currentp          322 gc/backgraph.c   while (currentp < (word *)(p + gc_descr)) {
currentp          323 gc/backgraph.c     word current = *currentp++;