420 	unsigned int bitmask;  in tree_walk()  local
447 				bitmask = 1 << node->bitnum;  in tree_walk()
448 				if ((leftmask & bitmask) == 0) {  in tree_walk()
449 					leftmask |= bitmask;  in tree_walk()
462 				if ((rightmask & bitmask) == 0) {  in tree_walk()
463 					rightmask |= bitmask;  in tree_walk()
476 				leftmask &= ~bitmask;  in tree_walk()
477 				rightmask &= ~bitmask;  in tree_walk()
662 	unsigned int bitmask;  in prune()  local
744 			bitmask = 1 << node->bitnum;  in prune()
745 			leftmask &= ~bitmask;  in prune()
746 			rightmask &= ~bitmask;  in prune()
764 		bitmask = 1 << node->bitnum;  in prune()
765 		leftmask &= ~bitmask;  in prune()
766 		rightmask &= ~bitmask;  in prune()
783 			bitmask = 1 << node->bitnum;  in prune()
784 			leftmask &= ~bitmask;  in prune()
785 			rightmask &= ~bitmask;  in prune()
788 		bitmask = 1 << node->bitnum;  in prune()
789 		if ((leftmask & bitmask) == 0 &&  in prune()
792 			leftmask |= bitmask;  in prune()
794 		} else if ((rightmask & bitmask) == 0 &&  in prune()
797 			rightmask |= bitmask;  in prune()
800 			leftmask &= ~bitmask;  in prune()
801 			rightmask &= ~bitmask;  in prune()
819 	unsigned int bitmask;  in mark_nodes()  local
832 		bitmask = 1 << node->bitnum;  in mark_nodes()
833 		if ((leftmask & bitmask) == 0) {  in mark_nodes()
834 			leftmask |= bitmask;  in mark_nodes()
851 		if ((rightmask & bitmask) == 0) {  in mark_nodes()
852 			rightmask |= bitmask;  in mark_nodes()
869 		leftmask &= ~bitmask;  in mark_nodes()
870 		rightmask &= ~bitmask;  in mark_nodes()
880 		bitmask = 1 << node->bitnum;  in mark_nodes()
881 		if ((leftmask & bitmask) == 0) {  in mark_nodes()
882 			leftmask |= bitmask;  in mark_nodes()
903 		if ((rightmask & bitmask) == 0) {  in mark_nodes()
904 			rightmask |= bitmask;  in mark_nodes()
926 		leftmask &= ~bitmask;  in mark_nodes()
927 		rightmask &= ~bitmask;  in mark_nodes()
945 	unsigned int bitmask;  in index_nodes()  local
975 			bitmask = 1 << node->bitnum;  in index_nodes()
976 			if (node->mark && (leftmask & bitmask) == 0) {  in index_nodes()
977 				leftmask |= bitmask;  in index_nodes()
991 			if (node->mark && (rightmask & bitmask) == 0) {  in index_nodes()
992 				rightmask |= bitmask;  in index_nodes()
1005 			leftmask &= ~bitmask;  in index_nodes()
1006 			rightmask &= ~bitmask;  in index_nodes()
1054 	unsigned int bitmask;  in size_nodes()  local
1141 			bitmask = 1 << node->bitnum;  in size_nodes()
1142 			pathmask |= bitmask;  in size_nodes()
1143 			if (node->mark && (leftmask & bitmask) == 0) {  in size_nodes()
1144 				leftmask |= bitmask;  in size_nodes()
1154 			if (node->mark && (rightmask & bitmask) == 0) {  in size_nodes()
1155 				rightmask |= bitmask;  in size_nodes()
1156 				pathbits |= bitmask;  in size_nodes()
1166 			leftmask &= ~bitmask;  in size_nodes()
1167 			rightmask &= ~bitmask;  in size_nodes()
1168 			pathmask &= ~bitmask;  in size_nodes()
1169 			pathbits &= ~bitmask;  in size_nodes()
1188 	unsigned int bitmask;  in emit()  local
1268 			bitmask = 1 << node->bitnum;  in emit()
1269 			if (node->mark && (leftmask & bitmask) == 0) {  in emit()
1270 				leftmask |= bitmask;  in emit()
1286 			if (node->mark && (rightmask & bitmask) == 0) {  in emit()
1287 				rightmask |= bitmask;  in emit()
1303 			leftmask &= ~bitmask;  in emit()
1304 			rightmask &= ~bitmask;  in emit()