}

		if o.Enable && !*o.Feature {
			print("GODEBUG sys/cpu: can not enable \"", o.Name, "\", missing CPU support\n")
			continue
		}

		if !o.Enable && o.Required {
			print("GODEBUG sys/cpu: can not disable \"", o.Name, "\", required CPU feature\n")
			continue
		}

		*o.Feature = o.Enable
	}

		of module path prefixes that should always be fetched in an insecure
		manner. Only applies to dependencies that are being fetched directly.
		GOINSECURE does not disable checksum database validation. GOPRIVATE or
		GONOSUMDB may be used to achieve that.
	GOOS
		The operating system for which to compile code.
		Examples are linux, darwin, windows, netbsd.
	GOPATH

// applications. There are golang.org/x/net/ipv4 and
// golang.org/x/net/ipv6 packages for general purpose uses.
//
// Note that ListenMulticastUDP will set the IP_MULTICAST_LOOP socket option
// to 0 under IPPROTO_IP, to disable loopback of multicast packets.
func ListenMulticastUDP(network string, ifi *Interface, gaddr *UDPAddr) (*UDPConn, error) {
	switch network {
	case "udp", "udp4", "udp6":
	default:

	// is very heavy-weight and not easy to stop, so we could end up
	// confusing the benchmarking framework for small b.N.
	b.StopTimer()
	stop()

	// Disable the default */op metrics.
	// ns/op doesn't mean anything because it's an average, but we
	// have a sleep in our b.N loop above which skews this significantly.
	b.ReportMetric(0, "ns/op")
	b.ReportMetric(0, "B/op")

	width := constant.BinaryOp(constant.BinaryOp(max, token.SUB, min), token.ADD, constant.MakeInt64(1))
	limit := constant.MakeInt64(int64(len(cc)) * minDensity)
	if constant.Compare(width, token.GTR, limit) {
		// We disable jump tables if we use less than a minimum fraction of the entries.
		// i.e. for switch x {case 0: case 1000: case 2000:} we don't want to use a jump table.
		return false
	}
	jt := ir.NewJumpTableStmt(base.Pos, s.exprname)

	defer clientDown.Close()
	defer serverDown.Close()

	serverUp.Close()

	// We'd like to call net.spliceFrom here and check the handled return
	// value, but we disable splice on old Linux kernels.
	//
	// In that case, poll.Splice and net.spliceFrom return a non-nil error
	// and handled == false. We'd ideally like to see handled == true

// 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 x86

				p.addDump(valString)
			default:
				return fmt.Sprintf("Did not find a flag matching %s in -d=ssa/%s debug option", flag, phase)
			}
			if p.disabled && p.required {
				return fmt.Sprintf("Cannot disable required SSA phase %s using -d=ssa/%s debug option", phase, phase)
			}
			passes[i] = p
			matchedOne = true
		}
	}
	if matchedOne {
		return ""
	}

	// is very heavy-weight and not easy to stop, so we could end up
	// confusing the benchmarking framework for small b.N.
	b.StopTimer()
	stop()

	// Disable the default */op metrics.
	// ns/op doesn't mean anything because it's an average, but we
	// have a sleep in our b.N loop above which skews this significantly.
	b.ReportMetric(0, "ns/op")
	b.ReportMetric(0, "B/op")

		}
		e.decodeMap[encoder[i]] = uint8(i)
	}
	return e
}

// WithPadding creates a new encoding identical to enc except
// with a specified padding character, or [NoPadding] to disable padding.
// The padding character must not be '\r' or '\n',
// must not be contained in the encoding's alphabet,
// must not be negative, and must be a rune equal or below '\xff'.