gcc4/gcc/sched-rgn.c

442   else if (dfs_nr[max_hdr[blk]] > dfs_nr[hdr])	\
444   else if (dfs_nr[max_hdr[blk]] < dfs_nr[hdr])	\
484   int *max_hdr, *dfs_nr, *degree;
517   dfs_nr = xcalloc (last_basic_block, sizeof (int));
576       dfs_nr[node] = ++count;
603       if (dfs_nr[child])
633      the entry node by placing a nonzero value in dfs_nr.  Thus if
634      dfs_nr is zero for any block, then it must be unreachable.  */
637     if (dfs_nr[bb->index] == 0)
643   /* Gross.  To avoid wasting memory, the second pass uses the dfs_nr array
645   degree = dfs_nr;
886   free (dfs_nr);