src/math/big/arith_arm64.s · ef99381676fb008d418720a1169184cea21f4bb6 · go / golang

math/big: optimize shlVU and shrVU on arm64 · 140bfe9c

erifan01 authored Oct 25, 2017

This CL implements shlVU and shrVU with arm64 HW instructions "LDP" and "STP" to reduce load cost,
it also removes unnecessary checks on the number of shifts for better performance.

Benchmarks:

name old time/op new time/op delta
AddVV/1-8 21.6ns ± 1% 21.6ns ± 1% ~ (p=0.683 n=5+5)
AddVV/2-8 13.5ns ± 0% 13.5ns ± 0% ~ (all equal)
AddVV/3-8 15.5ns ± 0% 15.5ns ± 0% ~ (all equal)
AddVV/4-8 17.5ns ± 0% 17.5ns ± 0% ~ (all equal)
AddVV/5-8 19.5ns ± 0% 19.5ns ± 0% ~ (all equal)
AddVV/10-8 29.5ns ± 0% 29.5ns ± 0% ~ (all equal)
AddVV/100-8 217ns ± 0% 217ns ± 0% ~ (all equal)
AddVV/1000-8 2.02µs ± 0% 2.03µs ± 0% +0.73% (p=0.008 n=5+5)
AddVV/10000-8 20.5µs ± 0% 20.5µs ± 0% -0.01% (p=0.008 n=5+5)
AddVV/100000-8 246µs ± 5% 250µs ± 4% ~ (p=0.548 n=5+5)
AddVW/1-8 9.26ns ± 0% 9.32ns ± 0% +0.65% (p=0.016 n=4+5)
AddVW/2-8 19.8ns ± 3% 19.8ns ± 0% ~ (p=0.143 n=5+5)
AddVW/3-8 11.5ns ± 0% 11.5ns ± 0% ~ (all equal)
AddVW/4-8 13.0ns ± 0% 13.0ns ± 0% ~ (all equal)
AddVW/5-8 14.5ns ± 0% 14.5ns ± 0% ~ (all equal)
AddVW/10-8 22.0ns ± 0% 22.0ns ± 0% ~ (all equal)
AddVW/100-8 167ns ± 0% 166ns ± 0% -0.60% (p=0.000 n=5+4)
AddVW/1000-8 1.52µs ± 0% 1.52µs ± 0% ~ (all equal)
AddVW/10000-8 15.1µs ± 0% 15.1µs ± 0% +0.01% (p=0.008 n=5+5)
AddVW/100000-8 163µs ± 4% 153µs ± 3% -5.97% (p=0.016 n=5+5)
AddMulVVW/1-8 32.4ns ± 1% 33.0ns ± 1% +1.73% (p=0.040 n=5+5)
AddMulVVW/2-8 56.4ns ± 2% 55.9ns ± 1% ~ (p=0.135 n=5+5)
AddMulVVW/3-8 85.4ns ± 1% 85.1ns ± 0% ~ (p=0.079 n=5+5)
AddMulVVW/4-8 129ns ± 1% 129ns ± 0% ~ (p=0.397 n=5+5)
AddMulVVW/5-8 148ns ± 0% 148ns ± 0% ~ (all equal)
AddMulVVW/10-8 270ns ± 0% 268ns ± 0% -0.74% (p=0.029 n=4+4)
AddMulVVW/100-8 2.75µs ± 0% 2.75µs ± 0% -0.09% (p=0.008 n=5+5)
AddMulVVW/1000-8 26.0µs ± 0% 26.0µs ± 0% -0.06% (p=0.024 n=5+5)
AddMulVVW/10000-8 312µs ± 0% 312µs ± 0% -0.09% (p=0.008 n=5+5)
AddMulVVW/100000-8 2.89ms ± 0% 2.89ms ± 0% +0.14% (p=0.016 n=5+5)
DecimalConversion-8 315µs ± 1% 312µs ± 0% ~ (p=0.095 n=5+5)
FloatString/100-8 2.56µs ± 1% 2.52µs ± 1% -1.31% (p=0.016 n=5+5)
FloatString/1000-8 58.6µs ± 0% 58.2µs ± 0% -0.75% (p=0.008 n=5+5)
FloatString/10000-8 4.59ms ± 0% 4.59ms ± 0% ~ (p=0.056 n=5+5)
FloatString/100000-8 446ms ± 0% 446ms ± 0% -0.04% (p=0.008 n=5+5)
FloatAdd/10-8 184ns ± 0% 178ns ± 0% -3.48% (p=0.008 n=5+5)
FloatAdd/100-8 189ns ± 3% 178ns ± 2% -6.02% (p=0.008 n=5+5)
FloatAdd/1000-8 371ns ± 0% 267ns ± 0% -27.99% (p=0.000 n=5+4)
FloatAdd/10000-8 1.87µs ± 0% 1.03µs ± 0% -44.74% (p=0.008 n=5+5)
FloatAdd/100000-8 17.1µs ± 0% 8.8µs ± 0% -48.71% (p=0.016 n=5+4)
FloatSub/10-8 148ns ± 0% 146ns ± 0% -1.35% (p=0.000 n=5+4)
FloatSub/100-8 148ns ± 0% 140ns ± 0% -5.41% (p=0.008 n=5+5)
FloatSub/1000-8 242ns ± 0% 191ns ± 0% -21.24% (p=0.008 n=5+5)
FloatSub/10000-8 1.07µs ± 0% 0.64µs ± 1% -39.89% (p=0.016 n=4+5)
FloatSub/100000-8 9.48µs ± 0% 5.32µs ± 0% -43.87% (p=0.008 n=5+5)
ParseFloatSmallExp-8 29.3µs ± 3% 28.6µs ± 1% ~ (p=0.310 n=5+5)
ParseFloatLargeExp-8 125µs ± 1% 123µs ± 0% -1.99% (p=0.008 n=5+5)
GCD10x10/WithoutXY-8 278ns ± 4% 289ns ± 5% +3.96% (p=0.040 n=5+5)
GCD10x10/WithXY-8 2.12µs ± 2% 2.15µs ± 2% ~ (p=0.095 n=5+5)
GCD10x100/WithoutXY-8 615ns ± 1% 629ns ± 5% ~ (p=0.135 n=5+5)
GCD10x100/WithXY-8 3.42µs ± 1% 3.53µs ± 2% +3.38% (p=0.008 n=5+5)
GCD10x1000/WithoutXY-8 1.39µs ± 1% 1.38µs ± 1% ~ (p=0.460 n=5+5)
GCD10x1000/WithXY-8 7.47µs ± 2% 7.49µs ± 3% ~ (p=1.000 n=5+5)
GCD10x10000/WithoutXY-8 8.71µs ± 1% 8.71µs ± 0% ~ (p=0.841 n=5+5)
GCD10x10000/WithXY-8 28.4µs ± 2% 27.2µs ± 2% -4.24% (p=0.008 n=5+5)
GCD10x100000/WithoutXY-8 78.9µs ± 1% 79.1µs ± 0% ~ (p=0.222 n=5+5)
GCD10x100000/WithXY-8 240µs ± 1% 228µs ± 1% -4.98% (p=0.008 n=5+5)
GCD100x100/WithoutXY-8 1.87µs ± 2% 1.89µs ± 1% ~ (p=0.095 n=5+5)
GCD100x100/WithXY-8 26.6µs ± 1% 26.3µs ± 0% -1.14% (p=0.032 n=5+5)
GCD100x1000/WithoutXY-8 4.44µs ± 2% 4.47µs ± 2% ~ (p=0.444 n=5+5)
GCD100x1000/WithXY-8 36.7µs ± 1% 36.0µs ± 1% -1.96% (p=0.008 n=5+5)
GCD100x10000/WithoutXY-8 22.8µs ± 1% 22.3µs ± 1% -2.52% (p=0.008 n=5+5)
GCD100x10000/WithXY-8 145µs ± 1% 142µs ± 0% -1.88% (p=0.008 n=5+5)
GCD100x100000/WithoutXY-8 198µs ± 1% 190µs ± 0% -4.06% (p=0.008 n=5+5)
GCD100x100000/WithXY-8 1.11ms ± 0% 1.09ms ± 0% -1.87% (p=0.008 n=5+5)
GCD1000x1000/WithoutXY-8 25.4µs ± 1% 25.0µs ± 1% -1.34% (p=0.008 n=5+5)
GCD1000x1000/WithXY-8 515µs ± 1% 485µs ± 0% -5.85% (p=0.008 n=5+5)
GCD1000x10000/WithoutXY-8 57.3µs ± 1% 56.2µs ± 1% -1.95% (p=0.008 n=5+5)
GCD1000x10000/WithXY-8 1.21ms ± 0% 1.18ms ± 0% -2.65% (p=0.008 n=5+5)
GCD1000x100000/WithoutXY-8 358µs ± 0% 352µs ± 1% -1.71% (p=0.008 n=5+5)
GCD1000x100000/WithXY-8 8.72ms ± 0% 8.66ms ± 0% -0.71% (p=0.008 n=5+5)
GCD10000x10000/WithoutXY-8 690µs ± 0% 687µs ± 1% ~ (p=0.095 n=5+5)
GCD10000x10000/WithXY-8 16.0ms ± 0% 12.5ms ± 0% -22.01% (p=0.008 n=5+5)
GCD10000x100000/WithoutXY-8 2.09ms ± 0% 2.07ms ± 0% -0.58% (p=0.008 n=5+5)
GCD10000x100000/WithXY-8 86.8ms ± 0% 83.4ms ± 0% -3.95% (p=0.008 n=5+5)
GCD100000x100000/WithoutXY-8 51.2ms ± 0% 51.2ms ± 0% ~ (p=0.548 n=5+5)
GCD100000x100000/WithXY-8 1.25s ± 0% 0.89s ± 0% -28.98% (p=0.008 n=5+5)
Hilbert-8 2.46ms ± 2% 2.53ms ± 1% +2.89% (p=0.032 n=5+5)
Binomial-8 5.15µs ± 4% 4.92µs ± 1% -4.43% (p=0.032 n=5+5)
QuoRem-8 7.10µs ± 0% 7.05µs ± 0% -0.59% (p=0.008 n=5+5)
Exp-8 161ms ± 0% 161ms ± 0% -0.24% (p=0.008 n=5+5)
Exp2-8 161ms ± 0% 161ms ± 0% -0.30% (p=0.016 n=4+5)
Bitset-8 40.4ns ± 0% 40.3ns ± 0% ~ (p=0.159 n=5+5)
BitsetNeg-8 158ns ± 4% 155ns ± 2% ~ (p=0.183 n=5+5)
BitsetOrig-8 374ns ± 0% 383ns ± 1% +2.35% (p=0.008 n=5+5)
BitsetNegOrig-8 620ns ± 1% 663ns ± 2% +7.00% (p=0.008 n=5+5)
ModSqrt225_Tonelli-8 7.26ms ± 0% 7.27ms ± 0% ~ (p=0.841 n=5+5)
ModSqrt224_3Mod4-8 2.24ms ± 0% 2.24ms ± 0% ~ (p=0.690 n=5+5)
ModSqrt5430_Tonelli-8 62.3s ± 0% 62.4s ± 0% +0.15% (p=0.008 n=5+5)
ModSqrt5430_3Mod4-8 20.8s ± 0% 20.8s ± 0% ~ (p=0.151 n=5+5)
Sqrt-8 101µs ± 0% 97µs ± 0% -3.99% (p=0.008 n=5+5)
IntSqr/1-8 32.7ns ± 1% 32.5ns ± 1% ~ (p=0.325 n=5+5)
IntSqr/2-8 161ns ± 4% 160ns ± 4% ~ (p=0.659 n=5+5)
IntSqr/3-8 296ns ± 7% 297ns ± 6% ~ (p=0.841 n=5+5)
IntSqr/5-8 752ns ± 7% 755ns ± 6% ~ (p=0.889 n=5+5)
IntSqr/8-8 1.91µs ± 3% 1.90µs ± 3% ~ (p=0.746 n=5+5)
IntSqr/10-8 2.99µs ± 4% 3.00µs ± 4% ~ (p=0.516 n=5+5)
IntSqr/20-8 6.29µs ± 2% 6.19µs ± 2% ~ (p=0.151 n=5+5)
IntSqr/30-8 14.0µs ± 1% 13.8µs ± 2% ~ (p=0.056 n=5+5)
IntSqr/50-8 38.1µs ± 3% 37.9µs ± 3% ~ (p=0.548 n=5+5)
IntSqr/80-8 95.1µs ± 1% 94.7µs ± 1% ~ (p=0.310 n=5+5)
IntSqr/100-8 148µs ± 1% 148µs ± 1% ~ (p=0.548 n=5+5)
IntSqr/200-8 587µs ± 1% 587µs ± 1% ~ (p=1.000 n=5+5)
IntSqr/300-8 1.31ms ± 1% 1.32ms ± 1% ~ (p=0.151 n=5+5)
IntSqr/500-8 2.48ms ± 0% 2.49ms ± 0% ~ (p=0.310 n=5+5)
IntSqr/800-8 4.68ms ± 0% 4.67ms ± 0% ~ (p=0.548 n=5+5)
IntSqr/1000-8 7.57ms ± 0% 7.56ms ± 0% ~ (p=0.421 n=5+5)
Mul-8 311ms ± 0% 311ms ± 0% ~ (p=0.151 n=5+5)
Exp3Power/0x10-8 584ns ± 2% 573ns ± 1% ~ (p=0.190 n=5+5)
Exp3Power/0x40-8 646ns ± 2% 649ns ± 1% ~ (p=0.690 n=5+5)
Exp3Power/0x100-8 1.42µs ± 2% 1.45µs ± 1% +2.03% (p=0.032 n=5+5)
Exp3Power/0x400-8 8.28µs ± 1% 8.39µs ± 0% +1.33% (p=0.008 n=5+5)
Exp3Power/0x1000-8 60.1µs ± 0% 59.8µs ± 0% -0.44% (p=0.008 n=5+5)
Exp3Power/0x4000-8 818µs ± 0% 816µs ± 0% -0.23% (p=0.008 n=5+5)
Exp3Power/0x10000-8 7.79ms ± 0% 7.78ms ± 0% ~ (p=0.690 n=5+5)
Exp3Power/0x40000-8 73.4ms ± 0% 73.3ms ± 0% ~ (p=0.151 n=5+5)
Exp3Power/0x100000-8 665ms ± 0% 664ms ± 0% -0.16% (p=0.016 n=4+5)
Exp3Power/0x400000-8 5.99s ± 0% 5.97s ± 0% -0.24% (p=0.008 n=5+5)
Fibo-8 116ms ± 0% 117ms ± 0% +0.42% (p=0.008 n=5+5)
NatSqr/1-8 113ns ± 2% 112ns ± 1% ~ (p=0.190 n=5+5)
NatSqr/2-8 249ns ± 2% 250ns ± 2% ~ (p=0.365 n=5+5)
NatSqr/3-8 379ns ± 1% 381ns ± 2% ~ (p=0.127 n=5+5)
NatSqr/5-8 838ns ± 3% 841ns ± 5% ~ (p=0.754 n=5+5)
NatSqr/8-8 1.97µs ± 3% 1.97µs ± 4% ~ (p=1.000 n=5+5)
NatSqr/10-8 3.04µs ± 4% 3.04µs ± 4% ~ (p=1.000 n=5+5)
NatSqr/20-8 6.49µs ± 3% 6.50µs ± 2% ~ (p=0.841 n=5+5)
NatSqr/30-8 14.3µs ± 2% 14.2µs ± 2% ~ (p=0.548 n=5+5)
NatSqr/50-8 38.5µs ± 3% 38.3µs ± 3% ~ (p=0.421 n=5+5)
NatSqr/80-8 96.3µs ± 1% 96.1µs ± 1% ~ (p=0.421 n=5+5)
NatSqr/100-8 149µs ± 1% 148µs ± 1% ~ (p=0.310 n=5+5)
NatSqr/200-8 591µs ± 1% 592µs ± 1% ~ (p=0.690 n=5+5)
NatSqr/300-8 1.31ms ± 1% 1.32ms ± 0% ~ (p=0.190 n=5+4)
NatSqr/500-8 2.49ms ± 0% 2.49ms ± 0% ~ (p=0.095 n=5+5)
NatSqr/800-8 4.70ms ± 0% 4.69ms ± 0% ~ (p=0.222 n=5+5)
NatSqr/1000-8 7.60ms ± 0% 7.58ms ± 0% ~ (p=0.222 n=5+5)
ScanPi-8 326µs ± 0% 327µs ± 1% ~ (p=0.222 n=5+5)
StringPiParallel-8 71.4µs ± 5% 67.7µs ± 4% ~ (p=0.095 n=5+5)
Scan/10/Base2-8 1.09µs ± 0% 1.10µs ± 1% ~ (p=0.810 n=5+5)
Scan/100/Base2-8 7.79µs ± 0% 7.83µs ± 0% +0.53% (p=0.008 n=5+5)
Scan/1000/Base2-8 78.9µs ± 0% 79.0µs ± 0% ~ (p=0.151 n=5+5)
Scan/10000/Base2-8 1.22ms ± 0% 1.23ms ± 1% ~ (p=0.690 n=5+5)
Scan/100000/Base2-8 55.1ms ± 0% 55.1ms ± 0% +0.10% (p=0.008 n=5+5)
Scan/10/Base8-8 512ns ± 1% 534ns ± 1% +4.34% (p=0.008 n=5+5)
Scan/100/Base8-8 2.90µs ± 1% 2.92µs ± 0% +0.67% (p=0.024 n=5+5)
Scan/1000/Base8-8 31.0µs ± 0% 31.1µs ± 0% +0.27% (p=0.008 n=5+5)
Scan/10000/Base8-8 741µs ± 0% 744µs ± 1% ~ (p=0.310 n=5+5)
Scan/100000/Base8-8 50.5ms ± 0% 50.7ms ± 0% +0.23% (p=0.016 n=5+4)
Scan/10/Base10-8 485ns ± 0% 510ns ± 1% +5.15% (p=0.008 n=5+5)
Scan/100/Base10-8 2.68µs ± 0% 2.70µs ± 0% +0.84% (p=0.008 n=5+5)
Scan/1000/Base10-8 28.7µs ± 0% 28.8µs ± 0% +0.34% (p=0.008 n=5+5)
Scan/10000/Base10-8 717µs ± 0% 720µs ± 1% ~ (p=0.238 n=5+5)
Scan/100000/Base10-8 50.3ms ± 0% 50.3ms ± 0% +0.02% (p=0.016 n=4+5)
Scan/10/Base16-8 439ns ± 0% 461ns ± 1% +5.06% (p=0.008 n=5+5)
Scan/100/Base16-8 2.48µs ± 0% 2.49µs ± 0% +0.59% (p=0.024 n=5+5)
Scan/1000/Base16-8 27.2µs ± 0% 27.3µs ± 0% ~ (p=0.063 n=5+5)
Scan/10000/Base16-8 722µs ± 0% 725µs ± 1% ~ (p=0.421 n=5+5)
Scan/100000/Base16-8 52.7ms ± 0% 52.7ms ± 0% ~ (p=0.686 n=4+4)
String/10/Base2-8 248ns ± 1% 248ns ± 1% ~ (p=0.802 n=5+5)
String/100/Base2-8 1.51µs ± 0% 1.51µs ± 0% -0.54% (p=0.024 n=5+5)
String/1000/Base2-8 13.6µs ± 0% 13.6µs ± 0% ~ (p=0.548 n=5+5)
String/10000/Base2-8 135µs ± 1% 135µs ± 2% ~ (p=0.421 n=5+5)
String/100000/Base2-8 1.32ms ± 1% 1.33ms ± 1% ~ (p=0.310 n=5+5)
String/10/Base8-8 169ns ± 0% 170ns ± 0% ~ (p=0.079 n=5+5)
String/100/Base8-8 635ns ± 1% 633ns ± 1% ~ (p=0.595 n=5+5)
String/1000/Base8-8 5.33µs ± 0% 5.30µs ± 0% ~ (p=0.063 n=5+5)
String/10000/Base8-8 50.7µs ± 1% 50.7µs ± 1% ~ (p=1.000 n=5+5)
String/100000/Base8-8 499µs ± 1% 500µs ± 1% ~ (p=1.000 n=5+5)
String/10/Base10-8 517ns ± 1% 512ns ± 1% -1.01% (p=0.032 n=5+5)
String/100/Base10-8 1.97µs ± 0% 2.01µs ± 1% +2.13% (p=0.008 n=5+5)
String/1000/Base10-8 12.6µs ± 1% 12.1µs ± 1% -4.16% (p=0.008 n=5+5)
String/10000/Base10-8 57.9µs ± 1% 54.8µs ± 1% -5.46% (p=0.008 n=5+5)
String/100000/Base10-8 25.6ms ± 0% 25.6ms ± 0% -0.12% (p=0.008 n=5+5)
String/10/Base16-8 149ns ± 0% 149ns ± 1% ~ (p=1.000 n=5+5)
String/100/Base16-8 514ns ± 0% 514ns ± 1% ~ (p=0.825 n=5+5)
String/1000/Base16-8 4.01µs ± 0% 4.01µs ± 0% ~ (p=0.595 n=5+5)
String/10000/Base16-8 37.7µs ± 0% 37.8µs ± 1% ~ (p=0.222 n=5+5)
String/100000/Base16-8 373µs ± 1% 372µs ± 0% ~ (p=1.000 n=5+5)
LeafSize/0-8 6.64ms ± 0% 6.66ms ± 0% +0.32% (p=0.008 n=5+5)
LeafSize/1-8 74.0µs ± 1% 71.2µs ± 1% -3.75% (p=0.008 n=5+5)
LeafSize/2-8 74.1µs ± 0% 70.7µs ± 1% -4.53% (p=0.008 n=5+5)
LeafSize/3-8 379µs ± 0% 374µs ± 0% -1.25% (p=0.008 n=5+5)
LeafSize/4-8 72.7µs ± 0% 69.2µs ± 0% -4.79% (p=0.008 n=5+5)
LeafSize/5-8 471µs ± 0% 466µs ± 0% -1.05% (p=0.008 n=5+5)
LeafSize/6-8 377µs ± 0% 373µs ± 0% -1.16% (p=0.008 n=5+5)
LeafSize/7-8 245µs ± 0% 241µs ± 0% -1.65% (p=0.008 n=5+5)
LeafSize/8-8 73.1µs ± 0% 69.4µs ± 0% -5.10% (p=0.008 n=5+5)
LeafSize/9-8 538µs ± 0% 532µs ± 0% -1.01% (p=0.008 n=5+5)
LeafSize/10-8 472µs ± 0% 467µs ± 0% -1.07% (p=0.008 n=5+5)
LeafSize/11-8 460µs ± 0% 454µs ± 0% -1.22% (p=0.008 n=5+5)
LeafSize/12-8 378µs ± 0% 373µs ± 0% -1.34% (p=0.008 n=5+5)
LeafSize/13-8 344µs ± 0% 338µs ± 0% -1.61% (p=0.008 n=5+5)
LeafSize/14-8 247µs ± 0% 243µs ± 0% -1.62% (p=0.008 n=5+5)
LeafSize/15-8 169µs ± 0% 165µs ± 0% -2.71% (p=0.008 n=5+5)
LeafSize/16-8 73.3µs ± 1% 69.5µs ± 0% -5.11% (p=0.008 n=5+5)
LeafSize/32-8 82.7µs ± 0% 79.2µs ± 0% -4.24% (p=0.008 n=5+5)
LeafSize/64-8 135µs ± 0% 132µs ± 0% -2.20% (p=0.008 n=5+5)
ProbablyPrime/n=0-8 44.2ms ± 0% 43.9ms ± 0% -0.69% (p=0.008 n=5+5)
ProbablyPrime/n=1-8 64.8ms ± 0% 64.4ms ± 0% -0.60% (p=0.008 n=5+5)
ProbablyPrime/n=5-8 147ms ± 0% 147ms ± 0% -0.34% (p=0.008 n=5+5)
ProbablyPrime/n=10-8 250ms ± 0% 249ms ± 0% -0.29% (p=0.008 n=5+5)
ProbablyPrime/n=20-8 456ms ± 0% 455ms ± 0% -0.29% (p=0.008 n=5+5)
ProbablyPrime/Lucas-8 23.6ms ± 0% 23.2ms ± 0% -1.44% (p=0.008 n=5+5)
ProbablyPrime/MillerRabinBase2-8 20.6ms ± 0% 20.6ms ± 0% -0.31% (p=0.008 n=5+5)
FloatSqrt/64-8 2.27µs ± 1% 2.11µs ± 1% -7.02% (p=0.008 n=5+5)
FloatSqrt/128-8 4.93µs ± 1% 4.40µs ± 1% -10.73% (p=0.008 n=5+5)
FloatSqrt/256-8 13.6µs ± 0% 6.6µs ± 1% -51.40% (p=0.008 n=5+5)
FloatSqrt/1000-8 69.8µs ± 0% 31.2µs ± 0% -55.27% (p=0.008 n=5+5)
FloatSqrt/10000-8 1.91ms ± 0% 0.59ms ± 0% -69.17% (p=0.008 n=5+5)
FloatSqrt/100000-8 55.4ms ± 0% 17.8ms ± 0% -67.79% (p=0.008 n=5+5)
FloatSqrt/1000000-8 4.56s ± 0% 1.52s ± 0% -66.59% (p=0.008 n=5+5)

Change-Id: Icce52c69668f564490c69b908338b21a2288e116
Reviewed-on: https://go-review.googlesource.com/79355Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

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arith_arm64.s 8.6 KB

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