{^uintptr(0), 0},
			},
			afterScav: map[ChunkIdx][]BitRange{
				BaseChunkIdx:       {{0, PallocChunkPages}},
				BaseChunkIdx + 0xe: {{0, PallocChunkPages}},
			},
		},
	}
	// Disable these tests on iOS since we have a small address space.
	// See #46860.
	if PageAlloc64Bit != 0 && goos.IsIos == 0 {
		tests["ScavAllVeryDiscontiguous"] = setup{
			beforeAlloc: map[ChunkIdx][]BitRange{

GOTRACEBACK=crash is like “system” but crashes in an operating system-specific
manner instead of exiting. For example, on Unix systems, the crash raises
SIGABRT to trigger a core dump.
GOTRACEBACK=wer is like “crash” but doesn't disable Windows Error Reporting (WER).
For historical reasons, the GOTRACEBACK settings 0, 1, and 2 are synonyms for
none, all, and system, respectively.
The [runtime/debug.SetTraceback] function allows increasing the

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package arm64

	// support, also known as "Happy Eyeballs", in which IPv4 is
	// tried soon if IPv6 appears to be misconfigured and
	// hanging.
	//
	// Deprecated: Fast Fallback is enabled by default. To
	// disable, set FallbackDelay to a negative value.
	DualStack bool

	// FallbackDelay specifies the length of time to wait before
	// spawning a RFC 6555 Fast Fallback connection. That is, this

IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
*/

const (

// (incl. returned) to variables of function type and type
// inference will attempt to infer the missing type arguments.
// Available with go1.21.
const enableReverseTypeInference = true // disable for debugging

// infer attempts to infer the complete set of type arguments for generic function instantiation/call
// based on the given type parameters tparams, type arguments targs, function parameters params, and

						return false
					}
				} else if xi != nil || yi != nil {
					// One but not both of them are interfaces.
					// In this case, either x or y could be viable matches for the corresponding
					// type parameter, which means choosing either introduces an order dependence.
					// Therefore, we must fail unification (go.dev/issue/60933).
					return false
				}

// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

package arm64

	mp := acquirem()

	// Advance the generation or stop the trace.
	trace.lastNonZeroGen = gen
	if stopTrace {
		systemstack(func() {
			// Ordering is important here. Set shutdown first, then disable tracing,
			// so that conditions like (traceEnabled() || traceShuttingDown()) have
			// no opportunity to be false. Hold the trace lock so this update appears
			// atomic to the trace reader.
			lock(&trace.lock)

			// to do that and avoid the overhead of trying to find some lower version
			// to downgrade to.
			//
			// However, it is possible that m depends on something that leads to its
			// own upgrade, so if the upgrade isn't viable we should go ahead and try
			// to downgrade (like with any other root).
			if v := mg.Selected(m.Path); v != m.Version {
				u := module.Version{Path: m.Path, Version: v}
				uPruning, ok := t.extendedRootPruning[m]