package sync

import (
	"sync/atomic"
	"unsafe"
)

// poolDequeue is a lock-free fixed-size single-producer,
// multi-consumer queue. The single producer can both push and pop
// from the head, and consumers can pop from the tail.
//
// It has the added feature that it nils out unused slots to avoid
// unnecessary retention of objects. This is important for sync.Pool,

	// removing all incoming dependencies), otherwise there are initialization
	// cycles.
	emitted := make(map[*declInfo]bool)
	for len(pq) > 0 {
		// get the next node
		n := heap.Pop(&pq).(*graphNode)

		if debug {
			fmt.Printf("\t%s (src pos %d) depends on %d nodes now\n",
				n.obj.Name(), n.obj.order(), n.ndeps)
		}

		// if n still depends on other nodes, we have a cycle
		if n.ndeps > 0 {

	// removing all incoming dependencies), otherwise there are initialization
	// cycles.
	emitted := make(map[*declInfo]bool)
	for len(pq) > 0 {
		// get the next node
		n := heap.Pop(&pq).(*graphNode)

		if debug {
			fmt.Printf("\t%s (src pos %d) depends on %d nodes now\n",
				n.obj.Name(), n.obj.order(), n.ndeps)
		}

		// if n still depends on other nodes, we have a cycle
		if n.ndeps > 0 {

func (h ValHeap) Swap(i, j int) { a := h.a; a[i], a[j] = a[j], a[i] }

func (h *ValHeap) Push(x interface{}) {
	// Push and Pop use pointer receivers because they modify the slice's length,
	// not just its contents.
	v := x.(*Value)
	h.a = append(h.a, v)
}
func (h *ValHeap) Pop() interface{} {
	old := h.a
	n := len(old)
	x := old[n-1]
	h.a = old[0 : n-1]
	return x
}
func (h ValHeap) Less(i, j int) bool {

func (l *orderEventList) Less(i, j int) bool {
	return (*l)[i].ev.Ts < (*l)[j].ev.Ts
}

func (h *orderEventList) Push(x orderEvent) {
	*h = append(*h, x)
	heapUp(h, len(*h)-1)
}

func (h *orderEventList) Pop() orderEvent {
	n := len(*h) - 1
	(*h)[0], (*h)[n] = (*h)[n], (*h)[0]
	heapDown(h, 0, n)
	x := (*h)[len(*h)-1]
	*h = (*h)[:len(*h)-1]
	return x
}

func heapUp(h *orderEventList, j int) {
	for {

  %3 = "tf.opD"(%2) {_xla_compile_device_type = "TPU", _replication_info = "replicate", is_stateless = true} : (tensor<i1>) -> tensor<i1>
  %4 = "tf.opE"() {is_stateless = true} : () -> tensor<i1>
  %5 = "tf.opF"(%arg0) {_xla_compile_device_type = "TPU", _replication_info = "replicate", is_stateless = true} : (tensor<i1>) -> tensor<i1>
  func.return %2, %3, %5 : tensor<i1>, tensor<i1>, tensor<i1>
}

// CHECK:      "tf.opB"

}

func (h bandUtilHeap) Swap(i, j int) {
	h[i], h[j] = h[j], h[i]
}

func (h *bandUtilHeap) Push(x any) {
	*h = append(*h, x.(bandUtil))
}

func (h *bandUtilHeap) Pop() any {
	x := (*h)[len(*h)-1]
	*h = (*h)[:len(*h)-1]
	return x
}

// UtilWindow is a specific window at Time.
type UtilWindow struct {
	Time int64

  // doesn't depends on any ops below it.
  std::stack<Operation*> op_stack;
  while (!value_queue.empty()) {
    Value current_value = value_queue.front();
    value_queue.pop();

    Operation* defining_node = current_value.getDefiningOp();
    if (defining_node == nullptr) continue;
    op_stack.push(defining_node);
    for (Value arg : defining_node->getOperands()) {

	if b.nobj != 0 {
		throw("workbuf is not empty")
	}
}

// getempty pops an empty work buffer off the work.empty list,
// allocating new buffers if none are available.
//
//go:nowritebarrier
func getempty() *workbuf {
	var b *workbuf
	if work.empty != 0 {
		b = (*workbuf)(work.empty.pop())
		if b != nil {
			b.checkempty()
		}
	}

        Deque<File> stack = new ArrayDeque<File>();
        stack.push(directory);
        while (!stack.isEmpty() && paths.size() < MAX_REPORTED_PATHS) {
            File current = stack.pop();
            String absolutePath = current.getAbsolutePath();
            if (!current.equals(directory) && !failedPaths.contains(absolutePath) && current.lastModified() >= startTime) {
                paths.add(absolutePath);