golang sha512block_decl 代码
文件路径：/src/crypto/sha512/sha512block_decl.go
/ Copyright 2013 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.
/go:build s390x || ppc64le || ppc64
package sha512
/go:noescape
func block(dig *digest, p []byte)