1// Copyright 2019 The Go Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style 3// license that can be found in the LICENSE file. 4 5// +build go1.13 6 7package poly1305 8 9import "math/bits" 10 11func bitsAdd64(x, y, carry uint64) (sum, carryOut uint64) { 12 return bits.Add64(x, y, carry) 13} 14 15func bitsSub64(x, y, borrow uint64) (diff, borrowOut uint64) { 16 return bits.Sub64(x, y, borrow) 17} 18 19func bitsMul64(x, y uint64) (hi, lo uint64) { 20 return bits.Mul64(x, y) 21} 22