39 lines
985 B
Go
39 lines
985 B
Go
// Copyright 2016 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 go1.7 && amd64 && !gccgo && !appengine
|
|
// +build go1.7,amd64,!gccgo,!appengine
|
|
|
|
package blake2b
|
|
|
|
import "golang.org/x/sys/cpu"
|
|
|
|
func init() {
|
|
useAVX2 = cpu.X86.HasAVX2
|
|
useAVX = cpu.X86.HasAVX
|
|
useSSE4 = cpu.X86.HasSSE41
|
|
}
|
|
|
|
//go:noescape
|
|
func fAVX2(h *[8]uint64, m *[16]uint64, c0, c1 uint64, flag uint64, rounds uint64)
|
|
|
|
//go:noescape
|
|
func fAVX(h *[8]uint64, m *[16]uint64, c0, c1 uint64, flag uint64, rounds uint64)
|
|
|
|
//go:noescape
|
|
func fSSE4(h *[8]uint64, m *[16]uint64, c0, c1 uint64, flag uint64, rounds uint64)
|
|
|
|
func f(h *[8]uint64, m *[16]uint64, c0, c1 uint64, flag uint64, rounds uint64) {
|
|
switch {
|
|
case useAVX2:
|
|
fAVX2(h, m, c0, c1, flag, rounds)
|
|
case useAVX:
|
|
fAVX(h, m, c0, c1, flag, rounds)
|
|
case useSSE4:
|
|
fSSE4(h, m, c0, c1, flag, rounds)
|
|
default:
|
|
fGeneric(h, m, c0, c1, flag, rounds)
|
|
}
|
|
}
|