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Move message loop into assembly (#3)

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This commit is contained in:
Frank
2016-06-29 20:18:44 +02:00
committed by Harshavardhana
parent 94258bb4c0
commit cf89911846
2 changed files with 58 additions and 61 deletions
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21
compress_amd64.go
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@@ -20,10 +20,9 @@
package blake2b
//go:noescape
func blockAVX(p []uint8, in, iv, t, f, shffle, out []uint64)
func blockAVXLoop(p []uint8, in, iv, t, f, shffle, out []uint64)
func compressAVX(d *digest, p []uint8) {
h0, h1, h2, h3, h4, h5, h6, h7 := d.h[0], d.h[1], d.h[2], d.h[3], d.h[4], d.h[5], d.h[6], d.h[7]
in := make([]uint64, 8, 8)
out := make([]uint64, 8, 8)
@@ -33,23 +32,11 @@ func compressAVX(d *digest, p []uint8) {
shffle[0] = 0x0201000706050403
shffle[1] = 0x0a09080f0e0d0c0b
for len(p) >= BlockSize {
// Increment counter.
d.t[0] += BlockSize
if d.t[0] < BlockSize {
d.t[1]++
}
in[0], in[1], in[2], in[3], in[4], in[5], in[6], in[7] = d.h[0], d.h[1], d.h[2], d.h[3], d.h[4], d.h[5], d.h[6], d.h[7]
in[0], in[1], in[2], in[3], in[4], in[5], in[6], in[7] = h0, h1, h2, h3, h4, h5, h6, h7
blockAVXLoop(p, in, iv[:], d.t[:], d.f[:], shffle, out)
blockAVX(p, in, iv[:], d.t[:], d.f[:], shffle, out)
h0, h1, h2, h3, h4, h5, h6, h7 = out[0], out[1], out[2], out[3], out[4], out[5], out[6], out[7]
p = p[BlockSize:]
}
d.h[0], d.h[1], d.h[2], d.h[3], d.h[4], d.h[5], d.h[6], d.h[7] = h0, h1, h2, h3, h4, h5, h6, h7
d.h[0], d.h[1], d.h[2], d.h[3], d.h[4], d.h[5], d.h[6], d.h[7] = out[0], out[1], out[2], out[3], out[4], out[5], out[6], out[7]
}
func compress(d *digest, p []uint8) {