420 	unsigned int leftmask;  in tree_walk()  local
436 		leftmask = rightmask = 0;  in tree_walk()
450 				if ((leftmask & bitmask) == 0) {  in tree_walk()
451 					leftmask |= bitmask;  in tree_walk()
478 				leftmask &= ~bitmask;  in tree_walk()
662 	unsigned int leftmask;  in prune()  local
676 	leftmask = rightmask = 0;  in prune()
747 			leftmask &= ~bitmask;  in prune()
767 		leftmask &= ~bitmask;  in prune()
786 			leftmask &= ~bitmask;  in prune()
791 		if ((leftmask & bitmask) == 0 &&  in prune()
794 			leftmask |= bitmask;  in prune()
802 			leftmask &= ~bitmask;  in prune()
819 	unsigned int leftmask;  in mark_nodes()  local
832 	leftmask = rightmask = 0;  in mark_nodes()
835 		if ((leftmask & bitmask) == 0) {  in mark_nodes()
836 			leftmask |= bitmask;  in mark_nodes()
871 		leftmask &= ~bitmask;  in mark_nodes()
880 	leftmask = rightmask = 0;  in mark_nodes()
883 		if ((leftmask & bitmask) == 0) {  in mark_nodes()
884 			leftmask |= bitmask;  in mark_nodes()
928 		leftmask &= ~bitmask;  in mark_nodes()
945 	unsigned int leftmask;  in index_nodes()  local
967 	leftmask = rightmask = 0;  in index_nodes()
978 			if (node->mark && (leftmask & bitmask) == 0) {  in index_nodes()
979 				leftmask |= bitmask;  in index_nodes()
1007 			leftmask &= ~bitmask;  in index_nodes()
1054 	unsigned int leftmask;  in size_nodes()  local
1078 	leftmask = rightmask = 0;  in size_nodes()
1145 			if (node->mark && (leftmask & bitmask) == 0) {  in size_nodes()
1146 				leftmask |= bitmask;  in size_nodes()
1168 			leftmask &= ~bitmask;  in size_nodes()
1188 	unsigned int leftmask;  in emit()  local
1220 	leftmask = rightmask = 0;  in emit()
1271 			if (node->mark && (leftmask & bitmask) == 0) {  in emit()
1272 				leftmask |= bitmask;  in emit()
1305 			leftmask &= ~bitmask;  in emit()