// in the original obj/i386, and it would encode
				// (using a valid, shorter form) as 3c 00 if we enabled
				// the call to bytereg here.
				if ctxt.Arch.Family == sys.AMD64 {
					bytereg(&p.From, &p.Ft)
					bytereg(&p.To, &p.Tt)
				}

			case P32: // 32 bit but illegal if 64-bit mode
				if ctxt.Arch.Family == sys.AMD64 {

			}
			var byteLen int
			for shift := uint(0); ; shift += 7 {
				if shift >= 64 {
					return ErrIntOverflowGenerated
				}
				if iNdEx >= l {
					return io.ErrUnexpectedEOF
				}
				b := dAtA[iNdEx]
				iNdEx++
				byteLen |= int(b&0x7F) << shift
				if b < 0x80 {
					break
				}
			}
			if byteLen < 0 {
				return ErrInvalidLengthGenerated

			}
			var byteLen int
			for shift := uint(0); ; shift += 7 {
				if shift >= 64 {
					return ErrIntOverflowGenerated
				}
				if iNdEx >= l {
					return io.ErrUnexpectedEOF
				}
				b := dAtA[iNdEx]
				iNdEx++
				byteLen |= int(b&0x7F) << shift
				if b < 0x80 {
					break
				}
			}
			if byteLen < 0 {
				return ErrInvalidLengthGenerated

func isRuntimeDepPkg(pkg string) bool {
	switch pkg {
	case "runtime",
		"sync/atomic",          // runtime may call to sync/atomic, due to go:linkname
		"internal/abi",         // used by reflectcall (and maybe more)
		"internal/bytealg",     // for IndexByte
		"internal/chacha8rand", // for rand
		"internal/cpu":         // for cpu features
		return true
	}
	return strings.HasPrefix(pkg, "runtime/internal/") && !strings.HasSuffix(pkg, "_test")
}

		// as a default value doesn't makes sense here.
		panic(&ValueError{"reflect.Value.IsZero", v.Kind()})
	}
}

// isZero For all zeros, performance is not as good as
// return bytealg.Count(b, byte(0)) == len(b)
func isZero(b []byte) bool {
	if len(b) == 0 {
		return true
	}
	const n = 32
	// Align memory addresses to 8 bytes.
	for uintptr(unsafe.Pointer(&b[0]))%8 != 0 {