Files
crypto/argon2/blamka_amd64.go
T
Alex Vaghin a660000891 argon2: add missing amd64 tags
The change fixes argon2_test build failure which currently
reads as follows when built with gccgo:

./argon2/blamka_ref.go:9:1: error: redefinition of 'processBlock'
 func processBlock(out, in1, in2 *block) {
 ^
./argon2/blamka_amd64.go:53:1: note: previous definition of 'processBlock' was here
 func processBlock(out, in1, in2 *block) {
 ^
./argon2/blamka_ref.go:13:1: error: redefinition of 'processBlockXOR'
 func processBlockXOR(out, in1, in2 *block) {
 ^
./argon2/blamka_amd64.go:57:1: note: previous definition of 'processBlockXOR' was here
 func processBlockXOR(out, in1, in2 *block) {
 ^

Change-Id: I5c1d7360a2a91a2ac27273a5c1da2a139b1537a7
Reviewed-on: https://go-review.googlesource.com/88455
Run-TryBot: Alex Vaghin <ddos@google.com>
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Adam Langley <agl@golang.org>
2018-01-19 16:59:57 +00:00

62 lines
1.3 KiB
Go

// 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.
// +build amd64,!gccgo,!appengine
package argon2
func init() {
useSSE4 = supportsSSE4()
}
//go:noescape
func supportsSSE4() bool
//go:noescape
func mixBlocksSSE2(out, a, b, c *block)
//go:noescape
func xorBlocksSSE2(out, a, b, c *block)
//go:noescape
func blamkaSSE4(b *block)
func processBlockSSE(out, in1, in2 *block, xor bool) {
var t block
mixBlocksSSE2(&t, in1, in2, &t)
if useSSE4 {
blamkaSSE4(&t)
} else {
for i := 0; i < blockLength; i += 16 {
blamkaGeneric(
&t[i+0], &t[i+1], &t[i+2], &t[i+3],
&t[i+4], &t[i+5], &t[i+6], &t[i+7],
&t[i+8], &t[i+9], &t[i+10], &t[i+11],
&t[i+12], &t[i+13], &t[i+14], &t[i+15],
)
}
for i := 0; i < blockLength/8; i += 2 {
blamkaGeneric(
&t[i], &t[i+1], &t[16+i], &t[16+i+1],
&t[32+i], &t[32+i+1], &t[48+i], &t[48+i+1],
&t[64+i], &t[64+i+1], &t[80+i], &t[80+i+1],
&t[96+i], &t[96+i+1], &t[112+i], &t[112+i+1],
)
}
}
if xor {
xorBlocksSSE2(out, in1, in2, &t)
} else {
mixBlocksSSE2(out, in1, in2, &t)
}
}
func processBlock(out, in1, in2 *block) {
processBlockSSE(out, in1, in2, false)
}
func processBlockXOR(out, in1, in2 *block) {
processBlockSSE(out, in1, in2, true)
}