421 	unsigned int rightmask;  in tree_walk()  local
436 		leftmask = rightmask = 0;  in tree_walk()
464 				if ((rightmask & bitmask) == 0) {  in tree_walk()
465 					rightmask |= bitmask;  in tree_walk()
479 				rightmask &= ~bitmask;  in tree_walk()
663 	unsigned int rightmask;  in prune()  local
676 	leftmask = rightmask = 0;  in prune()
748 			rightmask &= ~bitmask;  in prune()
768 		rightmask &= ~bitmask;  in prune()
787 			rightmask &= ~bitmask;  in prune()
796 		} else if ((rightmask & bitmask) == 0 &&  in prune()
799 			rightmask |= bitmask;  in prune()
803 			rightmask &= ~bitmask;  in prune()
820 	unsigned int rightmask;  in mark_nodes()  local
832 	leftmask = rightmask = 0;  in mark_nodes()
853 		if ((rightmask & bitmask) == 0) {  in mark_nodes()
854 			rightmask |= bitmask;  in mark_nodes()
872 		rightmask &= ~bitmask;  in mark_nodes()
880 	leftmask = rightmask = 0;  in mark_nodes()
905 		if ((rightmask & bitmask) == 0) {  in mark_nodes()
906 			rightmask |= bitmask;  in mark_nodes()
929 		rightmask &= ~bitmask;  in mark_nodes()
946 	unsigned int rightmask;  in index_nodes()  local
967 	leftmask = rightmask = 0;  in index_nodes()
993 			if (node->mark && (rightmask & bitmask) == 0) {  in index_nodes()
994 				rightmask |= bitmask;  in index_nodes()
1008 			rightmask &= ~bitmask;  in index_nodes()
1055 	unsigned int rightmask;  in size_nodes()  local
1078 	leftmask = rightmask = 0;  in size_nodes()
1156 			if (node->mark && (rightmask & bitmask) == 0) {  in size_nodes()
1157 				rightmask |= bitmask;  in size_nodes()
1169 			rightmask &= ~bitmask;  in size_nodes()
1189 	unsigned int rightmask;  in emit()  local
1220 	leftmask = rightmask = 0;  in emit()
1288 			if (node->mark && (rightmask & bitmask) == 0) {  in emit()
1289 				rightmask |= bitmask;  in emit()
1306 			rightmask &= ~bitmask;  in emit()