podman

1
// Copyright 2017 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
//go:build amd64 && gc && !purego
6

7
package argon2
8

9
import "golang.org/x/sys/cpu"
10

11
func init() {
12
	useSSE4 = cpu.X86.HasSSE41
13
}
14

15
//go:noescape
16
func mixBlocksSSE2(out, a, b, c *block)
17

18
//go:noescape
19
func xorBlocksSSE2(out, a, b, c *block)
20

21
//go:noescape
22
func blamkaSSE4(b *block)
23

24
func processBlockSSE(out, in1, in2 *block, xor bool) {
25
	var t block
26
	mixBlocksSSE2(&t, in1, in2, &t)
27
	if useSSE4 {
28
		blamkaSSE4(&t)
29
	} else {
30
		for i := 0; i < blockLength; i += 16 {
31
			blamkaGeneric(
32
				&t[i+0], &t[i+1], &t[i+2], &t[i+3],
33
				&t[i+4], &t[i+5], &t[i+6], &t[i+7],
34
				&t[i+8], &t[i+9], &t[i+10], &t[i+11],
35
				&t[i+12], &t[i+13], &t[i+14], &t[i+15],
36
			)
37
		}
38
		for i := 0; i < blockLength/8; i += 2 {
39
			blamkaGeneric(
40
				&t[i], &t[i+1], &t[16+i], &t[16+i+1],
41
				&t[32+i], &t[32+i+1], &t[48+i], &t[48+i+1],
42
				&t[64+i], &t[64+i+1], &t[80+i], &t[80+i+1],
43
				&t[96+i], &t[96+i+1], &t[112+i], &t[112+i+1],
44
			)
45
		}
46
	}
47
	if xor {
48
		xorBlocksSSE2(out, in1, in2, &t)
49
	} else {
50
		mixBlocksSSE2(out, in1, in2, &t)
51
	}
52
}
53

54
func processBlock(out, in1, in2 *block) {
55
	processBlockSSE(out, in1, in2, false)
56
}
57

58
func processBlockXOR(out, in1, in2 *block) {
59
	processBlockSSE(out, in1, in2, true)
60
}
61