}
	if asanenabled && len(a) > 0 {
		asanread(unsafe.Pointer(&a[0]), uintptr(len(a))*unsafe.Sizeof(a[0]))
	}
	var dum [4]byte
	size1 := 0
	for _, r := range a {
		size1 += encoderune(dum[:], r)
	}
	s, b := rawstringtmp(buf, size1+3)
	size2 := 0
	for _, r := range a {
		// check for race
		if size2 >= size1 {
			break
		}

A770          ; mapped                 ; A76F          # 5.1  MODIFIER LETTER US
A771..A778    ; valid                                  # 5.1  LATIN SMALL LETTER DUM..LATIN SMALL LETTER UM
A779          ; mapped                 ; A77A          # 5.1  LATIN CAPITAL LETTER INSULAR D
A77A          ; valid                                  # 5.1  LATIN SMALL LETTER INSULAR D