//
// The returned profile may be up to two garbage collection cycles old.
// This is to avoid skewing the profile toward allocations; because
// allocations happen in real time but frees are delayed until the garbage
// collector performs sweeping, the profile only accounts for allocations
// that have had a chance to be freed by the garbage collector.
//
// Most clients should use the runtime/pprof package or

	// arenaL2Bits is the number of bits of the arena number
	// covered by the second level arena index.
	//
	// The size of each arena map allocation is proportional to
	// 1<<arenaL2Bits, so it's important that this not be too
	// large. 48 bits leads to 32MB arena index allocations, which
	// is about the practical threshold.
	arenaL2Bits = heapAddrBits - logHeapArenaBytes - arenaL1Bits

	// allocations. Where the page size is less than the physical page
	// size, we already manage to do this by default.
	needPhysPageAlign := physPageAlignedStacks && typ == spanAllocStack && pageSize < physPageSize

	// If the allocation is small enough, try the page cache!
	// The page cache does not support aligned allocations, so we cannot use

	// allocations are blocked until assists can
	// happen, we want to enable assists as early as
	// possible.
	setGCPhase(_GCmark)

	gcBgMarkPrepare() // Must happen before assists are enabled.
	gcMarkRootPrepare()

	// Mark all active tinyalloc blocks. Since we're
	// allocating from these, they need to be black like
	// other allocations. The alternative is to blacken

	// and unscavenged memory, pushing the goal down significantly.
	//
	// heapFree is also safe to exclude from the memory limit because in the steady-state, it's
	// just a pool of memory for future heap allocations, and making new allocations from heapFree
	// memory doesn't increase overall memory use. In transient states, the scavenger and the
	// allocator actively manage the pool of heapFree memory to maintain the memory limit.
	//

// The caller is also responsible for cgo pointer checks if this
// may be writing Go pointers into non-Go memory.
//
// Pointer data is not maintained for allocations containing
// no pointers at all; any caller of bulkBarrierPreWrite must first
// make sure the underlying allocation contains pointers, usually
// by checking typ.PtrBytes.
//
// The typ argument is the type of the space at src and dst (and the

	deadline, _ := ctx.Deadline()

	identifier := fmt.Sprintf("key: %q, labels: %q, fields: %q", key, pred.Label, pred.Field)

	// Create a watcher here to reduce memory allocations under lock,
	// given that memory allocation may trigger GC and block the thread.
	// Also note that emptyFunc is a placeholder, until we will be able
	// to compute watcher.forget function (which has to happen under lock).

		x := NewInt(3)
		got := testing.AllocsPerRun(100, func() {
			// NewInt should inline, and all its allocations
			// can happen on the stack. Passing the result of NewInt
			// to Add should not cause any of those allocations to escape.
			x.Add(x, NewInt(n))
		})
		if got != 0 {
			t.Errorf("x.Add(x, NewInt(%d)), wanted 0 allocations, got %f", n, got)
		}
	}
}

func TestFloat64(t *testing.T) {

// TODO

// Use an affinity graph to mark two values which should use the
// same register. This affinity graph will be used to prefer certain
// registers for allocation. This affinity helps eliminate moves that
// are required for phi implementations and helps generate allocations
// for 2-register architectures.

// Note: regalloc generates a not-quite-SSA output. If we have:
//
//             b1: x = ... : AX

		}
		if v, ok := gotIPMap[svc.AutoAllocatedIPv4Address]; ok && v != svc.Hostname.String() {
			t.Errorf("multiple allocations of same IP address to different services with different hostname: %s", svc.AutoAllocatedIPv4Address)
		}
		gotIPMap[svc.AutoAllocatedIPv4Address] = svc.Hostname.String()
		// Validate that IP address is valid.