cmd/compile: optimize arm64 with indexed FP load/store
The FP load/store on arm64 have register indexed forms. And this
CL implements this optimization.
1. The total size of pkg/android_arm64 (excluding cmd/compile)
decreases about 400 bytes.
2. There is no regression in the go1 benchmark, the test case
GobEncode even gets slight improvement, excluding noise.
name old time/op new time/op delta
BinaryTree17-4 19.0s ± 0% 19.0s ± 1% ~ (p=0.817 n=29+29)
Fannkuch11-4 9.94s ± 0% 9.95s ± 0% +0.03% (p=0.010 n=24+30)
FmtFprintfEmpty-4 233ns ± 0% 233ns ± 0% ~ (all equal)
FmtFprintfString-4 427ns ± 0% 427ns ± 0% ~ (p=0.649 n=30+30)
FmtFprintfInt-4 471ns ± 0% 471ns ± 0% ~ (all equal)
FmtFprintfIntInt-4 730ns ± 0% 730ns ± 0% ~ (all equal)
FmtFprintfPrefixedInt-4 889ns ± 0% 889ns ± 0% ~ (all equal)
FmtFprintfFloat-4 1.21µs ± 0% 1.21µs ± 0% +0.04% (p=0.012 n=20+30)
FmtManyArgs-4 2.99µs ± 0% 2.99µs ± 0% ~ (p=0.651 n=29+29)
GobDecode-4 42.4ms ± 1% 42.3ms ± 1% -0.27% (p=0.001 n=29+28)
GobEncode-4 37.8ms ±11% 36.0ms ± 0% -4.67% (p=0.000 n=30+26)
Gzip-4 1.98s ± 1% 1.96s ± 1% -1.26% (p=0.000 n=30+30)
Gunzip-4 175ms ± 0% 175ms ± 0% ~ (p=0.988 n=29+29)
HTTPClientServer-4 854µs ± 5% 860µs ± 5% ~ (p=0.236 n=28+29)
JSONEncode-4 88.8ms ± 0% 87.9ms ± 0% -1.00% (p=0.000 n=24+26)
JSONDecode-4 390ms ± 1% 392ms ± 2% +0.48% (p=0.025 n=30+30)
Mandelbrot200-4 19.5ms ± 0% 19.5ms ± 0% ~ (p=0.894 n=24+29)
GoParse-4 20.3ms ± 0% 20.1ms ± 1% -0.94% (p=0.000 n=27+26)
RegexpMatchEasy0_32-4 451ns ± 0% 451ns ± 0% ~ (p=0.578 n=30+30)
RegexpMatchEasy0_1K-4 1.63µs ± 0% 1.63µs ± 0% ~ (p=0.298 n=30+28)
RegexpMatchEasy1_32-4 431ns ± 0% 434ns ± 0% +0.67% (p=0.000 n=30+29)
RegexpMatchEasy1_1K-4 2.60µs ± 0% 2.64µs ± 0% +1.36% (p=0.000 n=28+26)
RegexpMatchMedium_32-4 744ns ± 0% 744ns ± 0% ~ (p=0.474 n=29+29)
RegexpMatchMedium_1K-4 223µs ± 0% 223µs ± 0% -0.08% (p=0.038 n=26+30)
RegexpMatchHard_32-4 12.2µs ± 0% 12.3µs ± 0% +0.27% (p=0.000 n=29+30)
RegexpMatchHard_1K-4 373µs ± 0% 373µs ± 0% ~ (p=0.219 n=29+28)
Revcomp-4 2.84s ± 0% 2.84s ± 0% ~ (p=0.130 n=28+28)
Template-4 394ms ± 1% 392ms ± 1% -0.52% (p=0.001 n=30+30)
TimeParse-4 1.93µs ± 0% 1.93µs ± 0% ~ (p=0.587 n=29+30)
TimeFormat-4 2.00µs ± 0% 2.00µs ± 0% +0.07% (p=0.001 n=28+27)
[Geo mean] 306µs 305µs -0.17%
name old speed new speed delta
GobDecode-4 18.1MB/s ± 1% 18.2MB/s ± 1% +0.27% (p=0.001 n=29+28)
GobEncode-4 20.3MB/s ±10% 21.3MB/s ± 0% +4.64% (p=0.000 n=30+26)
Gzip-4 9.79MB/s ± 1% 9.91MB/s ± 1% +1.28% (p=0.000 n=30+30)
Gunzip-4 111MB/s ± 0% 111MB/s ± 0% ~ (p=0.988 n=29+29)
JSONEncode-4 21.8MB/s ± 0% 22.1MB/s ± 0% +1.02% (p=0.000 n=24+26)
JSONDecode-4 4.97MB/s ± 1% 4.95MB/s ± 2% -0.45% (p=0.031 n=30+30)
GoParse-4 2.85MB/s ± 1% 2.88MB/s ± 1% +1.03% (p=0.000 n=30+26)
RegexpMatchEasy0_32-4 70.9MB/s ± 0% 70.9MB/s ± 0% ~ (p=0.904 n=29+28)
RegexpMatchEasy0_1K-4 627MB/s ± 0% 627MB/s ± 0% ~ (p=0.156 n=30+30)
RegexpMatchEasy1_32-4 74.2MB/s ± 0% 73.7MB/s ± 0% -0.67% (p=0.000 n=30+29)
RegexpMatchEasy1_1K-4 393MB/s ± 0% 388MB/s ± 0% -1.34% (p=0.000 n=28+26)
RegexpMatchMedium_32-4 1.34MB/s ± 0% 1.34MB/s ± 0% ~ (all equal)
RegexpMatchMedium_1K-4 4.59MB/s ± 0% 4.59MB/s ± 0% +0.07% (p=0.035 n=25+30)
RegexpMatchHard_32-4 2.61MB/s ± 0% 2.61MB/s ± 0% -0.11% (p=0.002 n=28+30)
RegexpMatchHard_1K-4 2.75MB/s ± 0% 2.75MB/s ± 0% +0.15% (p=0.001 n=30+24)
Revcomp-4 89.4MB/s ± 0% 89.4MB/s ± 0% ~ (p=0.140 n=28+28)
Template-4 4.93MB/s ± 1% 4.95MB/s ± 1% +0.51% (p=0.001 n=30+30)
[Geo mean] 18.4MB/s 18.4MB/s +0.37%
Change-Id: I9a6b521a971b21cfb51064e8e9b853cef8a1d071
Reviewed-on: https://go-review.googlesource.com/124636
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>