422 	unsigned int bitmask;  in tree_walk()  local
449 				bitmask = 1 << node->bitnum;  in tree_walk()
450 				if ((leftmask & bitmask) == 0) {  in tree_walk()
451 					leftmask |= bitmask;  in tree_walk()
464 				if ((rightmask & bitmask) == 0) {  in tree_walk()
465 					rightmask |= bitmask;  in tree_walk()
478 				leftmask &= ~bitmask;  in tree_walk()
479 				rightmask &= ~bitmask;  in tree_walk()
664 	unsigned int bitmask;  in prune()  local
746 			bitmask = 1 << node->bitnum;  in prune()
747 			leftmask &= ~bitmask;  in prune()
748 			rightmask &= ~bitmask;  in prune()
766 		bitmask = 1 << node->bitnum;  in prune()
767 		leftmask &= ~bitmask;  in prune()
768 		rightmask &= ~bitmask;  in prune()
785 			bitmask = 1 << node->bitnum;  in prune()
786 			leftmask &= ~bitmask;  in prune()
787 			rightmask &= ~bitmask;  in prune()
790 		bitmask = 1 << node->bitnum;  in prune()
791 		if ((leftmask & bitmask) == 0 &&  in prune()
794 			leftmask |= bitmask;  in prune()
796 		} else if ((rightmask & bitmask) == 0 &&  in prune()
799 			rightmask |= bitmask;  in prune()
802 			leftmask &= ~bitmask;  in prune()
803 			rightmask &= ~bitmask;  in prune()
821 	unsigned int bitmask;  in mark_nodes()  local
834 		bitmask = 1 << node->bitnum;  in mark_nodes()
835 		if ((leftmask & bitmask) == 0) {  in mark_nodes()
836 			leftmask |= bitmask;  in mark_nodes()
853 		if ((rightmask & bitmask) == 0) {  in mark_nodes()
854 			rightmask |= bitmask;  in mark_nodes()
871 		leftmask &= ~bitmask;  in mark_nodes()
872 		rightmask &= ~bitmask;  in mark_nodes()
882 		bitmask = 1 << node->bitnum;  in mark_nodes()
883 		if ((leftmask & bitmask) == 0) {  in mark_nodes()
884 			leftmask |= bitmask;  in mark_nodes()
905 		if ((rightmask & bitmask) == 0) {  in mark_nodes()
906 			rightmask |= bitmask;  in mark_nodes()
928 		leftmask &= ~bitmask;  in mark_nodes()
929 		rightmask &= ~bitmask;  in mark_nodes()
947 	unsigned int bitmask;  in index_nodes()  local
977 			bitmask = 1 << node->bitnum;  in index_nodes()
978 			if (node->mark && (leftmask & bitmask) == 0) {  in index_nodes()
979 				leftmask |= bitmask;  in index_nodes()
993 			if (node->mark && (rightmask & bitmask) == 0) {  in index_nodes()
994 				rightmask |= bitmask;  in index_nodes()
1007 			leftmask &= ~bitmask;  in index_nodes()
1008 			rightmask &= ~bitmask;  in index_nodes()
1056 	unsigned int bitmask;  in size_nodes()  local
1143 			bitmask = 1 << node->bitnum;  in size_nodes()
1144 			pathmask |= bitmask;  in size_nodes()
1145 			if (node->mark && (leftmask & bitmask) == 0) {  in size_nodes()
1146 				leftmask |= bitmask;  in size_nodes()
1156 			if (node->mark && (rightmask & bitmask) == 0) {  in size_nodes()
1157 				rightmask |= bitmask;  in size_nodes()
1158 				pathbits |= bitmask;  in size_nodes()
1168 			leftmask &= ~bitmask;  in size_nodes()
1169 			rightmask &= ~bitmask;  in size_nodes()
1170 			pathmask &= ~bitmask;  in size_nodes()
1171 			pathbits &= ~bitmask;  in size_nodes()
1190 	unsigned int bitmask;  in emit()  local
1270 			bitmask = 1 << node->bitnum;  in emit()
1271 			if (node->mark && (leftmask & bitmask) == 0) {  in emit()
1272 				leftmask |= bitmask;  in emit()
1288 			if (node->mark && (rightmask & bitmask) == 0) {  in emit()
1289 				rightmask |= bitmask;  in emit()
1305 			leftmask &= ~bitmask;  in emit()
1306 			rightmask &= ~bitmask;  in emit()