func UserTasksHandlerFunc(t *parsedTrace) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		tasks := t.summary.Tasks

		// Summarize groups of tasks with the same name.
		summary := make(map[string]taskStats)
		for _, task := range tasks {
			stats, ok := summary[task.Name]
			if !ok {
				stats.Type = task.Name
			}
			stats.add(task)

//
// The precise representation is an implementation detail, but for the
// sake of documentation, 0s are free pages and 1s are allocated pages.
type pallocBits pageBits

// summarize returns a packed summary of the bitmap in pallocBits.
func (b *pallocBits) summarize() pallocSum {
	var start, most, cur uint
	const notSetYet = ^uint(0) // sentinel for start value
	start = notSetYet
	for i := 0; i < len(b); i++ {
		x := b[i]

    return methods_.summarize != nullptr;
  }

  Status SummarizeValue(std::string& summary) const override {
    if (methods_.summarize == nullptr) {
      return tensorflow::CustomDeviceTensorHandle::SummarizeValue(summary);
    }
    TF_Status c_status;
    std::unique_ptr<TF_Buffer, decltype(&TF_DeleteBuffer)> summary_buffer(
        methods_.summarize(data_, &c_status), TF_DeleteBuffer);

  %3 = "tf.StringFormat"(%2) {__op_key = 1: i32, device = "/job:localhost/replica:0/task:0/device:CPU:0", placeholder = "{}", strtemplate = "%s", summarize = 3 : i64, template = "Outside compiled {}"} : (tensor<i32>) -> tensor<!tf_type.string>

		y := p.chunkOf(sc).summarize()
		if x == y {
			return
		}
		p.summary[len(p.summary)-1][sc] = y
	} else if contig {
		// Slow contiguous path: the allocation spans more than one chunk
		// and at least one summary is guaranteed to change.
		summary := p.summary[len(p.summary)-1]

		// Update the summary for chunk sc.
		summary[sc] = p.chunkOf(sc).summarize()

                val currentFingerprint = host.fingerprintOf(fileSystemInputs)
                if (currentFingerprint != fileSystemInputsFingerprint) {
                    // TODO: summarize what has changed (see https://github.com/gradle/configuration-cache/issues/282)
                    return "an input to $workDisplayName has changed"
                }
            }

)

// UserRegionsHandlerFunc returns a HandlerFunc that reports all regions found in the trace.
func UserRegionsHandlerFunc(t *parsedTrace) http.HandlerFunc {
	return func(w http.ResponseWriter, r *http.Request) {
		// Summarize all the regions.
		summary := make(map[regionFingerprint]regionStats)
		for _, g := range t.summary.Goroutines {
			for _, r := range g.Regions {
				id := fingerprintRegion(r)
				stats, ok := summary[id]
				if !ok {

func (b *PallocBits) Free(i, n uint)             { (*pallocBits)(b).free(i, n) }
func (b *PallocBits) Summarize() PallocSum       { return PallocSum((*pallocBits)(b).summarize()) }
func (b *PallocBits) PopcntRange(i, n uint) uint { return (*pageBits)(b).popcntRange(i, n) }

// SummarizeSlow is a slow but more obviously correct implementation
// of (*pallocBits).summarize. Used for testing.
func SummarizeSlow(b *PallocBits) PallocSum {
	var start, most, end uint

      %control_28 = tf_executor.island wraps "tf.Assert"(%outputs_26, %outputs_2, %outputs_4, %outputs_6, %outputs_22) {device = "/device:CPU:0", summarize = 3 : i64} : (tensor<*xi1>, tensor<!tf_type.string>, tensor<!tf_type.string>, tensor<!tf_type.string>, tensor<i32>) -> ()

Since included builds can be located anywhere on disk, their build path is determined by the name of the containing directory.
This can sometimes lead to conflicts.

To summarize, the included builds must fulfill these requirements:

* Each included build must have a unique build path.
* Each included build path must not conflict with any project path of the main build.