// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package sha256

import 

var k = _K

//go:noescape
func ( []uint32,  []byte,  []uint32)

func ( *digest,  []byte) {
	if !cpu.ARM64.HasSHA2 {
		blockGeneric(, )
	} else {
		 := .h[:]
		sha256block(, , k)
	}
}