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crypto/internal/fips140/sha256: interleave scheduling and rounds for 11.2% speed-up
goos: linux
goarch: amd64
pkg: crypto/sha256
cpu: AMD EPYC 7B13
│ before │ after │
│ sec/op │ sec/op vs base │
Hash8Bytes/New 384.4n ± 2% 347.2n ± 0% -9.68% (p=0.001 n=7)
Hash8Bytes/New-2 386.3n ± 2% 348.3n ± 1% -9.84% (p=0.001 n=7)
Hash8Bytes/New-4 386.7n ± 1% 347.9n ± 1% -10.03% (p=0.001 n=7)
Hash8Bytes/Sum224 406.9n ± 2% 358.8n ± 3% -11.82% (p=0.001 n=7)
Hash8Bytes/Sum224-2 404.1n ± 1% 359.8n ± 1% -10.96% (p=0.001 n=7)
Hash8Bytes/Sum224-4 409.5n ± 1% 360.9n ± 1% -11.87% (p=0.001 n=7)
Hash8Bytes/Sum256 401.3n ± 1% 352.4n ± 0% -12.19% (p=0.001 n=7)
Hash8Bytes/Sum256-2 402.0n ± 1% 354.2n ± 1% -11.89% (p=0.001 n=7)
Hash8Bytes/Sum256-4 403.7n ± 1% 353.5n ± 1% -12.43% (p=0.001 n=7)
Hash1K/New 5.836µ ± 1% 5.180µ ± 2% -11.24% (p=0.001 n=7)
Hash1K/New-2 5.855µ ± 1% 5.177µ ± 5% -11.58% (p=0.001 n=7)
Hash1K/New-4 5.878µ ± 0% 5.215µ ± 3% -11.28% (p=0.001 n=7)
Hash1K/Sum224 5.860µ ± 1% 5.225µ ± 1% -10.84% (p=0.001 n=7)
Hash1K/Sum224-2 5.852µ ± 1% 5.198µ ± 1% -11.18% (p=0.001 n=7)
Hash1K/Sum224-4 5.867µ ± 1% 5.226µ ± 4% -10.93% (p=0.001 n=7)
Hash1K/Sum256 5.851µ ± 0% 5.246µ ± 1% -10.34% (p=0.001 n=7)
Hash1K/Sum256-2 5.863µ ± 1% 5.237µ ± 2% -10.68% (p=0.001 n=7)
Hash1K/Sum256-4 5.873µ ± 1% 5.191µ ± 1% -11.61% (p=0.001 n=7)
Hash8K/New 44.06µ ± 0% 38.93µ ± 1% -11.63% (p=0.001 n=7)
Hash8K/New-2 44.23µ ± 0% 39.14µ ± 1% -11.50% (p=0.001 n=7)
Hash8K/New-4 44.25µ ± 1% 39.04µ ± 1% -11.77% (p=0.001 n=7)
Hash8K/Sum224 43.98µ ± 1% 40.47µ ± 2% -7.98% (p=0.001 n=7)
Hash8K/Sum224-2 44.31µ ± 1% 39.54µ ± 3% -10.76% (p=0.001 n=7)
Hash8K/Sum224-4 44.45µ ± 1% 39.04µ ± 2% -12.16% (p=0.001 n=7)
Hash8K/Sum256 43.95µ ± 0% 39.23µ ± 0% -10.75% (p=0.001 n=7)
Hash8K/Sum256-2 44.19µ ± 1% 39.39µ ± 2% -10.87% (p=0.001 n=7)
Hash8K/Sum256-4 44.19µ ± 1% 39.27µ ± 1% -11.13% (p=0.001 n=7)
Hash256K/New 1.397m ± 1% 1.238m ± 1% -11.39% (p=0.001 n=7)
Hash256K/New-2 1.404m ± 1% 1.242m ± 1% -11.53% (p=0.001 n=7)
Hash256K/New-4 1.402m ± 1% 1.243m ± 1% -11.31% (p=0.001 n=7)
Hash256K/Sum224 1.398m ± 0% 1.237m ± 1% -11.48% (p=0.001 n=7)
Hash256K/Sum224-2 1.402m ± 1% 1.239m ± 1% -11.59% (p=0.001 n=7)
Hash256K/Sum224-4 1.409m ± 1% 1.245m ± 1% -11.61% (p=0.001 n=7)
Hash256K/Sum256 1.402m ± 1% 1.242m ± 1% -11.38% (p=0.001 n=7)
Hash256K/Sum256-2 1.397m ± 1% 1.240m ± 1% -11.22% (p=0.001 n=7)
Hash256K/Sum256-4 1.404m ± 1% 1.250m ± 1% -10.97% (p=0.001 n=7)
Hash1M/New 5.584m ± 2% 4.944m ± 1% -11.46% (p=0.001 n=7)
Hash1M/New-2 5.609m ± 1% 4.974m ± 1% -11.33% (p=0.001 n=7)
Hash1M/New-4 5.625m ± 2% 4.984m ± 2% -11.40% (p=0.001 n=7)
Hash1M/Sum224 5.578m ± 0% 4.949m ± 0% -11.28% (p=0.001 n=7)
Hash1M/Sum224-2 5.603m ± 1% 4.985m ± 1% -11.02% (p=0.001 n=7)
Hash1M/Sum224-4 5.619m ± 1% 4.976m ± 1% -11.44% (p=0.001 n=7)
Hash1M/Sum256 5.589m ± 1% 4.940m ± 0% -11.61% (p=0.001 n=7)
Hash1M/Sum256-2 5.581m ± 1% 4.981m ± 1% -10.75% (p=0.001 n=7)
Hash1M/Sum256-4 5.618m ± 3% 4.966m ± 1% -11.59% (p=0.001 n=7)
geomean 60.48µ 53.71µ -11.19%
│ before │ after │
│ B/s │ B/s vs base │
Hash8Bytes/New 19.85Mi ± 2% 21.97Mi ± 0% +10.72% (p=0.001 n=7)
Hash8Bytes/New-2 19.75Mi ± 2% 21.91Mi ± 1% +10.91% (p=0.001 n=7)
Hash8Bytes/New-4 19.73Mi ± 1% 21.93Mi ± 1% +11.16% (p=0.001 n=7)
Hash8Bytes/Sum224 18.75Mi ± 2% 21.27Mi ± 3% +13.43% (p=0.001 n=7)
Hash8Bytes/Sum224-2 18.88Mi ± 1% 21.20Mi ± 1% +12.27% (p=0.001 n=7)
Hash8Bytes/Sum224-4 18.63Mi ± 1% 21.14Mi ± 1% +13.46% (p=0.001 n=7)
Hash8Bytes/Sum256 19.01Mi ± 1% 21.65Mi ± 0% +13.90% (p=0.001 n=7)
Hash8Bytes/Sum256-2 18.98Mi ± 1% 21.54Mi ± 1% +13.52% (p=0.001 n=7)
Hash8Bytes/Sum256-4 18.90Mi ± 1% 21.58Mi ± 1% +14.18% (p=0.001 n=7)
Hash1K/New 167.4Mi ± 1% 188.5Mi ± 2% +12.65% (p=0.001 n=7)
Hash1K/New-2 166.8Mi ± 1% 188.6Mi ± 5% +13.11% (p=0.001 n=7)
Hash1K/New-4 166.1Mi ± 0% 187.3Mi ± 3% +12.71% (p=0.001 n=7)
Hash1K/Sum224 166.7Mi ± 1% 186.9Mi ± 1% +12.14% (p=0.001 n=7)
Hash1K/Sum224-2 166.9Mi ± 1% 187.9Mi ± 1% +12.59% (p=0.001 n=7)
Hash1K/Sum224-4 166.5Mi ± 1% 186.9Mi ± 4% +12.27% (p=0.001 n=7)
Hash1K/Sum256 166.9Mi ± 0% 186.1Mi ± 1% +11.51% (p=0.001 n=7)
Hash1K/Sum256-2 166.6Mi ± 1% 186.5Mi ± 2% +11.94% (p=0.001 n=7)
Hash1K/Sum256-4 166.3Mi ± 1% 188.1Mi ± 1% +13.15% (p=0.001 n=7)
Hash8K/New 177.3Mi ± 0% 200.7Mi ± 1% +13.17% (p=0.001 n=7)
Hash8K/New-2 176.6Mi ± 0% 199.6Mi ± 1% +13.00% (p=0.001 n=7)
Hash8K/New-4 176.6Mi ± 1% 200.1Mi ± 1% +13.34% (p=0.001 n=7)
Hash8K/Sum224 177.6Mi ± 1% 193.0Mi ± 2% +8.67% (p=0.001 n=7)
Hash8K/Sum224-2 176.3Mi ± 1% 197.6Mi ± 3% +12.06% (p=0.001 n=7)
Hash8K/Sum224-4 175.8Mi ± 1% 200.1Mi ± 2% +13.84% (p=0.001 n=7)
Hash8K/Sum256 177.8Mi ± 0% 199.2Mi ± 0% +12.04% (p=0.001 n=7)
Hash8K/Sum256-2 176.8Mi ± 1% 198.4Mi ± 2% +12.20% (p=0.001 n=7)
Hash8K/Sum256-4 176.8Mi ± 1% 198.9Mi ± 1% +12.52% (p=0.001 n=7)
Hash256K/New 179.0Mi ± 1% 202.0Mi ± 1% +12.86% (p=0.001 n=7)
Hash256K/New-2 178.1Mi ± 1% 201.3Mi ± 1% +13.03% (p=0.001 n=7)
Hash256K/New-4 178.4Mi ± 1% 201.1Mi ± 1% +12.76% (p=0.001 n=7)
Hash256K/Sum224 178.8Mi ± 0% 202.0Mi ± 1% +12.97% (p=0.001 n=7)
Hash256K/Sum224-2 178.3Mi ± 1% 201.7Mi ± 1% +13.11% (p=0.001 n=7)
Hash256K/Sum224-4 177.5Mi ± 1% 200.8Mi ± 1% +13.13% (p=0.001 n=7)
Hash256K/Sum256 178.3Mi ± 1% 201.2Mi ± 1% +12.83% (p=0.001 n=7)
Hash256K/Sum256-2 179.0Mi ± 1% 201.6Mi ± 1% +12.64% (p=0.001 n=7)
Hash256K/Sum256-4 178.0Mi ± 1% 200.0Mi ± 1% +12.33% (p=0.001 n=7)
Hash1M/New 179.1Mi ± 2% 202.3Mi ± 1% +12.94% (p=0.001 n=7)
Hash1M/New-2 178.3Mi ± 1% 201.1Mi ± 1% +12.78% (p=0.001 n=7)
Hash1M/New-4 177.8Mi ± 2% 200.6Mi ± 2% +12.87% (p=0.001 n=7)
Hash1M/Sum224 179.3Mi ± 0% 202.1Mi ± 0% +12.71% (p=0.001 n=7)
Hash1M/Sum224-2 178.5Mi ± 1% 200.6Mi ± 1% +12.39% (p=0.001 n=7)
Hash1M/Sum224-4 178.0Mi ± 1% 201.0Mi ± 1% +12.92% (p=0.001 n=7)
Hash1M/Sum256 178.9Mi ± 1% 202.4Mi ± 0% +13.13% (p=0.001 n=7)
Hash1M/Sum256-2 179.2Mi ± 1% 200.8Mi ± 1% +12.04% (p=0.001 n=7)
Hash1M/Sum256-4 178.0Mi ± 3% 201.3Mi ± 1% +13.12% (p=0.001 n=7)
geomean 112.5Mi 126.6Mi +12.60%
│ before │ after │
│ B/op │ B/op vs base │
Hash8Bytes/New 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/New-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/New-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum224 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum224-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum224-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum256 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum256-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum256-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/New 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/New-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/New-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum224 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum224-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum224-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum256 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum256-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum256-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/New 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/New-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/New-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum224 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum224-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum224-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum256 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum256-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum256-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/New 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/New-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/New-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum224 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum224-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum224-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum256 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum256-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum256-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/New 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/New-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/New-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum224 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum224-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum224-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum256 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum256-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum256-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
geomean ² +0.00% ²
¹ all samples are equal
² summaries must be >0 to compute geomean
│ before │ after │
│ allocs/op │ allocs/op vs base │
Hash8Bytes/New 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/New-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/New-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum224 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum224-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum224-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum256 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum256-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8Bytes/Sum256-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/New 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/New-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/New-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum224 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum224-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum224-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum256 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum256-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1K/Sum256-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/New 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/New-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/New-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum224 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum224-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum224-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum256 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum256-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash8K/Sum256-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/New 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/New-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/New-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum224 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum224-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum224-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum256 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum256-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash256K/Sum256-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/New 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/New-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/New-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum224 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum224-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum224-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum256 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum256-2 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
Hash1M/Sum256-4 0.000 ± 0% 0.000 ± 0% ~ (p=1.000 n=7) ¹
geomean ² +0.00% ²
¹ all samples are equal
² summaries must be >0 to compute geomean
Change-Id: I705f024221690532b2e891ab8e508d07eefe295b
Reviewed-on: https://go-review.googlesource.com/c/go/+/711843
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
Neal Patel
parent
1cc1337f0a
commit
5b34354bd3
1 changed files with 12 additions and 15 deletions
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@ -81,23 +81,20 @@ func blockGeneric(dig *Digest, p []byte) {
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var w [64]uint32
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h0, h1, h2, h3, h4, h5, h6, h7 := dig.h[0], dig.h[1], dig.h[2], dig.h[3], dig.h[4], dig.h[5], dig.h[6], dig.h[7]
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for len(p) >= chunk {
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// Can interlace the computation of w with the
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// rounds below if needed for speed.
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for i := 0; i < 16; i++ {
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j := i * 4
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w[i] = uint32(p[j])<<24 | uint32(p[j+1])<<16 | uint32(p[j+2])<<8 | uint32(p[j+3])
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}
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for i := 16; i < 64; i++ {
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v1 := w[i-2]
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t1 := (bits.RotateLeft32(v1, -17)) ^ (bits.RotateLeft32(v1, -19)) ^ (v1 >> 10)
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v2 := w[i-15]
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t2 := (bits.RotateLeft32(v2, -7)) ^ (bits.RotateLeft32(v2, -18)) ^ (v2 >> 3)
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w[i] = t1 + w[i-7] + t2 + w[i-16]
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}
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a, b, c, d, e, f, g, h := h0, h1, h2, h3, h4, h5, h6, h7
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for i := 0; i < 64; i++ {
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for i := range 64 {
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if i < 16 {
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j := i * 4
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w[i] = uint32(p[j])<<24 | uint32(p[j+1])<<16 | uint32(p[j+2])<<8 | uint32(p[j+3])
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} else {
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v1 := w[i-2]
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t1 := (bits.RotateLeft32(v1, -17)) ^ (bits.RotateLeft32(v1, -19)) ^ (v1 >> 10)
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v2 := w[i-15]
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t2 := (bits.RotateLeft32(v2, -7)) ^ (bits.RotateLeft32(v2, -18)) ^ (v2 >> 3)
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w[i] = t1 + w[i-7] + t2 + w[i-16]
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}
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t1 := h + ((bits.RotateLeft32(e, -6)) ^ (bits.RotateLeft32(e, -11)) ^ (bits.RotateLeft32(e, -25))) + ((e & f) ^ (^e & g)) + _K[i] + w[i]
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t2 := ((bits.RotateLeft32(a, -2)) ^ (bits.RotateLeft32(a, -13)) ^ (bits.RotateLeft32(a, -22))) + ((a & b) ^ (a & c) ^ (b & c))
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