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3100 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Ben Shi
|
067dfce21f |
cmd/compile: optimize ARM's comparision
Optimize (CMPconst [0] (ADD x y)) to (CMN x y) will only get benefits when the result of the addition is no longer used, otherwise there might be even performance drop. And this CL fixes that issue for CMP/CMN/TST/TEQ. There is little regression in the go1 benchmark (excluding noise), and the test case JSONDecode-4 even gets improvement. name old time/op new time/op delta BinaryTree17-4 21.6s ± 1% 21.6s ± 0% -0.22% (p=0.013 n=30+30) Fannkuch11-4 11.1s ± 0% 11.1s ± 0% +0.11% (p=0.000 n=30+29) FmtFprintfEmpty-4 297ns ± 0% 297ns ± 0% +0.08% (p=0.007 n=26+28) FmtFprintfString-4 589ns ± 1% 589ns ± 0% ~ (p=0.659 n=30+25) FmtFprintfInt-4 644ns ± 1% 650ns ± 0% +0.88% (p=0.000 n=30+24) FmtFprintfIntInt-4 964ns ± 0% 977ns ± 0% +1.33% (p=0.000 n=30+30) FmtFprintfPrefixedInt-4 1.06µs ± 0% 1.07µs ± 0% +1.31% (p=0.000 n=29+27) FmtFprintfFloat-4 1.89µs ± 0% 1.92µs ± 0% +1.25% (p=0.000 n=29+29) FmtManyArgs-4 3.63µs ± 0% 3.67µs ± 0% +1.33% (p=0.000 n=29+27) GobDecode-4 38.1ms ± 1% 37.9ms ± 1% -0.60% (p=0.000 n=29+29) GobEncode-4 35.3ms ± 2% 35.2ms ± 1% ~ (p=0.286 n=30+30) Gzip-4 2.36s ± 0% 2.37s ± 2% ~ (p=0.277 n=24+28) Gunzip-4 264ms ± 1% 264ms ± 1% ~ (p=0.104 n=28+30) HTTPClientServer-4 1.04ms ± 4% 1.02ms ± 4% -1.65% (p=0.000 n=28+28) JSONEncode-4 78.5ms ± 1% 79.6ms ± 1% +1.34% (p=0.000 n=27+28) JSONDecode-4 379ms ± 4% 352ms ± 5% -7.09% (p=0.000 n=29+30) Mandelbrot200-4 17.6ms ± 0% 17.6ms ± 0% ~ (p=0.206 n=28+29) GoParse-4 21.9ms ± 1% 22.1ms ± 1% +0.87% (p=0.000 n=28+26) RegexpMatchEasy0_32-4 631ns ± 0% 641ns ± 0% +1.63% (p=0.000 n=29+30) RegexpMatchEasy0_1K-4 4.11µs ± 0% 4.11µs ± 0% ~ (p=0.700 n=30+30) RegexpMatchEasy1_32-4 670ns ± 0% 679ns ± 0% +1.37% (p=0.000 n=21+30) RegexpMatchEasy1_1K-4 5.31µs ± 0% 5.26µs ± 0% -1.03% (p=0.000 n=25+28) RegexpMatchMedium_32-4 905ns ± 0% 906ns ± 0% +0.14% (p=0.001 n=30+30) RegexpMatchMedium_1K-4 192µs ± 0% 191µs ± 0% -0.45% (p=0.000 n=29+27) RegexpMatchHard_32-4 11.8µs ± 0% 11.7µs ± 0% -0.39% (p=0.000 n=29+28) RegexpMatchHard_1K-4 347µs ± 0% 347µs ± 0% ~ (p=0.084 n=29+30) Revcomp-4 37.5ms ± 1% 37.5ms ± 1% ~ (p=0.279 n=29+29) Template-4 519ms ± 2% 519ms ± 2% ~ (p=0.652 n=28+29) TimeParse-4 2.83µs ± 0% 2.78µs ± 0% -1.90% (p=0.000 n=27+28) TimeFormat-4 5.79µs ± 0% 5.60µs ± 0% -3.23% (p=0.000 n=29+29) [Geo mean] 331µs 330µs -0.16% name old speed new speed delta GobDecode-4 20.1MB/s ± 1% 20.3MB/s ± 1% +0.61% (p=0.000 n=29+29) GobEncode-4 21.7MB/s ± 2% 21.8MB/s ± 1% ~ (p=0.294 n=30+30) Gzip-4 8.23MB/s ± 1% 8.20MB/s ± 2% ~ (p=0.099 n=26+28) Gunzip-4 73.5MB/s ± 1% 73.4MB/s ± 1% ~ (p=0.107 n=28+30) JSONEncode-4 24.7MB/s ± 1% 24.4MB/s ± 1% -1.32% (p=0.000 n=27+28) JSONDecode-4 5.13MB/s ± 4% 5.52MB/s ± 5% +7.65% (p=0.000 n=29+30) GoParse-4 2.65MB/s ± 1% 2.63MB/s ± 1% -0.87% (p=0.000 n=28+26) RegexpMatchEasy0_32-4 50.7MB/s ± 0% 49.9MB/s ± 0% -1.58% (p=0.000 n=29+29) RegexpMatchEasy0_1K-4 249MB/s ± 0% 249MB/s ± 0% ~ (p=0.342 n=30+28) RegexpMatchEasy1_32-4 47.7MB/s ± 0% 47.1MB/s ± 0% -1.39% (p=0.000 n=26+30) RegexpMatchEasy1_1K-4 193MB/s ± 0% 195MB/s ± 0% +1.04% (p=0.000 n=25+28) RegexpMatchMedium_32-4 1.10MB/s ± 0% 1.10MB/s ± 0% -0.42% (p=0.000 n=30+26) RegexpMatchMedium_1K-4 5.33MB/s ± 0% 5.36MB/s ± 0% +0.43% (p=0.000 n=29+29) RegexpMatchHard_32-4 2.72MB/s ± 0% 2.73MB/s ± 0% +0.37% (p=0.000 n=29+30) RegexpMatchHard_1K-4 2.95MB/s ± 0% 2.95MB/s ± 0% ~ (all equal) Revcomp-4 67.8MB/s ± 1% 67.7MB/s ± 1% ~ (p=0.273 n=29+29) Template-4 3.74MB/s ± 2% 3.74MB/s ± 2% ~ (p=0.665 n=28+29) [Geo mean] 15.2MB/s 15.2MB/s +0.21% Change-Id: Ifed1fb8cc02d5ca52c8bc6c21b6b5bf6dbb2701a Reviewed-on: https://go-review.googlesource.com/132115 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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Iskander Sharipov
|
4cf33e361a |
cmd/compile/internal/gc: fix mayAffectMemory in esc.go
For OINDEX and other Left+Right nodes, we want the whole node to be considered as "may affect memory" if either of Left or Right affect memory. Initial implementation only considered node as such if both Left and Right were non-safe. Change-Id: Icfb965a0b4c24d8f83f3722216db068dad2eba95 Reviewed-on: https://go-review.googlesource.com/133275 Run-TryBot: Iskander Sharipov <iskander.sharipov@intel.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> |
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Iskander Sharipov
|
bcf3e063cc |
test: remove go:noinline from escape_because.go
File is compiled with "-l" flag, so go:noinline is redundant. Change-Id: Ia269f3b9de9466857fc578ba5164613393e82369 Reviewed-on: https://go-review.googlesource.com/133295 Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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Tobias Klauser
|
d7fc2205d4 |
test: fix nilptr3 check for wasm
CL 131735 only updated nilptr3.go for the adjusted nil check. Adjust nilptr3_wasm.go as well. Change-Id: I4a6257d32bb212666fe768dac53901ea0b051138 Reviewed-on: https://go-review.googlesource.com/133495 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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Michael Munday
|
f94de9c9fb |
cmd/compile: make math/bits.RotateLeft{32,64} intrinsics on s390x
Extends CL 132435 to s390x. s390x has 32- and 64-bit variable rotate left instructions. Change-Id: Ic4f1ebb0e0543207ed2fc8c119e0163b428138a5 Reviewed-on: https://go-review.googlesource.com/133035 Run-TryBot: Michael Munday <mike.munday@ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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Ben Shi
|
0e9f1de0b7 |
cmd/compile: optimize arm64's comparison
Add more optimization with TST/CMN. 1. A tiny benchmark shows more than 12% improvement. TSTCMN-4 378µs ± 0% 332µs ± 0% -12.15% (p=0.000 n=30+27) (https://github.com/benshi001/ugo1/blob/master/tstcmn_test.go) 2. There is little regression in the go1 benchmark, excluding noise. name old time/op new time/op delta BinaryTree17-4 19.1s ± 0% 19.1s ± 0% ~ (p=0.994 n=28+29) Fannkuch11-4 10.0s ± 0% 10.0s ± 0% ~ (p=0.198 n=30+25) FmtFprintfEmpty-4 233ns ± 0% 233ns ± 0% +0.14% (p=0.002 n=24+30) FmtFprintfString-4 428ns ± 0% 428ns ± 0% ~ (all equal) FmtFprintfInt-4 472ns ± 0% 472ns ± 0% ~ (all equal) FmtFprintfIntInt-4 725ns ± 0% 725ns ± 0% ~ (all equal) FmtFprintfPrefixedInt-4 889ns ± 0% 888ns ± 0% ~ (p=0.632 n=28+30) FmtFprintfFloat-4 1.20µs ± 0% 1.20µs ± 0% +0.05% (p=0.001 n=18+30) FmtManyArgs-4 3.00µs ± 0% 2.99µs ± 0% -0.07% (p=0.001 n=27+30) GobDecode-4 42.1ms ± 0% 42.2ms ± 0% +0.29% (p=0.000 n=28+28) GobEncode-4 38.6ms ± 9% 38.8ms ± 9% ~ (p=0.912 n=30+30) Gzip-4 2.07s ± 1% 2.05s ± 1% -0.64% (p=0.000 n=29+30) Gunzip-4 175ms ± 0% 175ms ± 0% -0.15% (p=0.001 n=30+30) HTTPClientServer-4 872µs ± 5% 880µs ± 6% ~ (p=0.196 n=30+29) JSONEncode-4 88.5ms ± 1% 89.8ms ± 1% +1.49% (p=0.000 n=23+24) JSONDecode-4 393ms ± 1% 390ms ± 1% -0.89% (p=0.000 n=28+30) Mandelbrot200-4 19.5ms ± 0% 19.5ms ± 0% ~ (p=0.405 n=29+28) GoParse-4 19.9ms ± 0% 20.0ms ± 0% +0.27% (p=0.000 n=30+30) RegexpMatchEasy0_32-4 431ns ± 0% 431ns ± 0% ~ (p=1.000 n=30+30) RegexpMatchEasy0_1K-4 1.61µs ± 0% 1.61µs ± 0% ~ (p=0.527 n=26+26) RegexpMatchEasy1_32-4 443ns ± 0% 443ns ± 0% ~ (all equal) RegexpMatchEasy1_1K-4 2.58µs ± 1% 2.58µs ± 1% ~ (p=0.578 n=27+25) RegexpMatchMedium_32-4 740ns ± 0% 740ns ± 0% ~ (p=0.357 n=30+30) RegexpMatchMedium_1K-4 223µs ± 0% 223µs ± 0% +0.16% (p=0.000 n=30+29) RegexpMatchHard_32-4 12.3µs ± 0% 12.3µs ± 0% ~ (p=0.236 n=27+27) RegexpMatchHard_1K-4 371µs ± 0% 371µs ± 0% +0.09% (p=0.000 n=30+27) Revcomp-4 2.85s ± 0% 2.85s ± 0% ~ (p=0.057 n=28+25) Template-4 408ms ± 1% 409ms ± 1% ~ (p=0.117 n=29+29) TimeParse-4 1.93µs ± 0% 1.93µs ± 0% ~ (p=0.535 n=29+28) TimeFormat-4 1.99µs ± 0% 1.99µs ± 0% ~ (p=0.168 n=29+28) [Geo mean] 306µs 307µs +0.07% name old speed new speed delta GobDecode-4 18.3MB/s ± 0% 18.2MB/s ± 0% -0.31% (p=0.000 n=28+29) GobEncode-4 19.9MB/s ± 8% 19.8MB/s ± 9% ~ (p=0.923 n=30+30) Gzip-4 9.39MB/s ± 1% 9.45MB/s ± 1% +0.65% (p=0.000 n=29+30) Gunzip-4 111MB/s ± 0% 111MB/s ± 0% +0.15% (p=0.001 n=30+30) JSONEncode-4 21.9MB/s ± 1% 21.6MB/s ± 1% -1.45% (p=0.000 n=23+23) JSONDecode-4 4.94MB/s ± 1% 4.98MB/s ± 1% +0.84% (p=0.000 n=27+30) GoParse-4 2.91MB/s ± 0% 2.90MB/s ± 0% -0.34% (p=0.000 n=21+22) RegexpMatchEasy0_32-4 74.1MB/s ± 0% 74.1MB/s ± 0% ~ (p=0.469 n=29+28) RegexpMatchEasy0_1K-4 634MB/s ± 0% 634MB/s ± 0% ~ (p=0.978 n=24+28) RegexpMatchEasy1_32-4 72.2MB/s ± 0% 72.2MB/s ± 0% ~ (p=0.064 n=27+29) RegexpMatchEasy1_1K-4 396MB/s ± 1% 396MB/s ± 1% ~ (p=0.583 n=27+25) RegexpMatchMedium_32-4 1.35MB/s ± 0% 1.35MB/s ± 0% ~ (all equal) RegexpMatchMedium_1K-4 4.60MB/s ± 0% 4.59MB/s ± 0% -0.14% (p=0.000 n=30+26) RegexpMatchHard_32-4 2.61MB/s ± 0% 2.61MB/s ± 0% ~ (all equal) RegexpMatchHard_1K-4 2.76MB/s ± 0% 2.76MB/s ± 0% ~ (all equal) Revcomp-4 89.1MB/s ± 0% 89.1MB/s ± 0% ~ (p=0.059 n=28+25) Template-4 4.75MB/s ± 1% 4.75MB/s ± 1% ~ (p=0.106 n=29+29) [Geo mean] 18.3MB/s 18.3MB/s -0.07% Change-Id: I3cd76ce63e84b0c3cebabf9fa3573b76a7343899 Reviewed-on: https://go-review.googlesource.com/124935 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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Ben Shi
|
b444215116 |
cmd/compile: optimize ARM64's code with MADD/MSUB
MADD does MUL-ADD in a single instruction, and MSUB does the similiar simplification for MUL-SUB. The CL implements the optimization with MADD/MSUB. 1. The total size of pkg/android_arm64/ decreases about 20KB, excluding cmd/compile/. 2. The go1 benchmark shows a little improvement for RegexpMatchHard_32-4 and Template-4, excluding noise. name old time/op new time/op delta BinaryTree17-4 16.3s ± 1% 16.5s ± 1% +1.41% (p=0.000 n=26+28) Fannkuch11-4 8.79s ± 1% 8.76s ± 0% -0.36% (p=0.000 n=26+28) FmtFprintfEmpty-4 172ns ± 0% 172ns ± 0% ~ (all equal) FmtFprintfString-4 362ns ± 1% 364ns ± 0% +0.55% (p=0.000 n=30+30) FmtFprintfInt-4 416ns ± 0% 416ns ± 0% ~ (p=0.099 n=22+30) FmtFprintfIntInt-4 655ns ± 1% 660ns ± 1% +0.76% (p=0.000 n=30+30) FmtFprintfPrefixedInt-4 810ns ± 0% 809ns ± 0% -0.08% (p=0.009 n=29+29) FmtFprintfFloat-4 1.08µs ± 0% 1.09µs ± 0% +0.61% (p=0.000 n=30+29) FmtManyArgs-4 2.70µs ± 0% 2.69µs ± 0% -0.23% (p=0.000 n=29+28) GobDecode-4 32.2ms ± 1% 32.1ms ± 1% -0.39% (p=0.000 n=27+26) GobEncode-4 27.4ms ± 2% 27.4ms ± 1% ~ (p=0.864 n=28+28) Gzip-4 1.53s ± 1% 1.52s ± 1% -0.30% (p=0.031 n=29+29) Gunzip-4 146ms ± 0% 146ms ± 0% -0.14% (p=0.001 n=25+30) HTTPClientServer-4 1.00ms ± 4% 0.98ms ± 6% -1.65% (p=0.001 n=29+30) JSONEncode-4 67.3ms ± 1% 67.2ms ± 1% ~ (p=0.520 n=28+28) JSONDecode-4 329ms ± 5% 330ms ± 4% ~ (p=0.142 n=30+30) Mandelbrot200-4 17.3ms ± 0% 17.3ms ± 0% ~ (p=0.055 n=26+29) GoParse-4 16.9ms ± 1% 17.0ms ± 1% +0.82% (p=0.000 n=30+30) RegexpMatchEasy0_32-4 382ns ± 0% 382ns ± 0% ~ (all equal) RegexpMatchEasy0_1K-4 1.33µs ± 0% 1.33µs ± 0% -0.25% (p=0.000 n=30+27) RegexpMatchEasy1_32-4 361ns ± 0% 361ns ± 0% -0.08% (p=0.002 n=30+28) RegexpMatchEasy1_1K-4 2.11µs ± 0% 2.09µs ± 0% -0.54% (p=0.000 n=30+29) RegexpMatchMedium_32-4 594ns ± 0% 592ns ± 0% -0.32% (p=0.000 n=30+30) RegexpMatchMedium_1K-4 173µs ± 0% 172µs ± 0% -0.77% (p=0.000 n=29+27) RegexpMatchHard_32-4 10.4µs ± 0% 10.1µs ± 0% -3.63% (p=0.000 n=28+27) RegexpMatchHard_1K-4 306µs ± 0% 301µs ± 0% -1.64% (p=0.000 n=29+30) Revcomp-4 2.51s ± 1% 2.52s ± 0% +0.18% (p=0.017 n=26+27) Template-4 394ms ± 3% 382ms ± 3% -3.22% (p=0.000 n=28+28) TimeParse-4 1.67µs ± 0% 1.67µs ± 0% +0.05% (p=0.030 n=27+30) TimeFormat-4 1.72µs ± 0% 1.70µs ± 0% -0.79% (p=0.000 n=28+26) [Geo mean] 259µs 259µs -0.33% name old speed new speed delta GobDecode-4 23.8MB/s ± 1% 23.9MB/s ± 1% +0.40% (p=0.001 n=27+26) GobEncode-4 28.0MB/s ± 2% 28.0MB/s ± 1% ~ (p=0.863 n=28+28) Gzip-4 12.7MB/s ± 1% 12.7MB/s ± 1% +0.32% (p=0.026 n=29+29) Gunzip-4 133MB/s ± 0% 133MB/s ± 0% +0.15% (p=0.001 n=24+30) JSONEncode-4 28.8MB/s ± 1% 28.9MB/s ± 1% ~ (p=0.475 n=28+28) JSONDecode-4 5.89MB/s ± 4% 5.87MB/s ± 5% ~ (p=0.174 n=29+30) GoParse-4 3.43MB/s ± 0% 3.40MB/s ± 1% -0.83% (p=0.000 n=28+30) RegexpMatchEasy0_32-4 83.6MB/s ± 0% 83.6MB/s ± 0% ~ (p=0.848 n=28+29) RegexpMatchEasy0_1K-4 768MB/s ± 0% 770MB/s ± 0% +0.25% (p=0.000 n=30+27) RegexpMatchEasy1_32-4 88.5MB/s ± 0% 88.5MB/s ± 0% ~ (p=0.086 n=29+29) RegexpMatchEasy1_1K-4 486MB/s ± 0% 489MB/s ± 0% +0.54% (p=0.000 n=30+29) RegexpMatchMedium_32-4 1.68MB/s ± 0% 1.69MB/s ± 0% +0.60% (p=0.000 n=30+23) RegexpMatchMedium_1K-4 5.90MB/s ± 0% 5.95MB/s ± 0% +0.85% (p=0.000 n=18+20) RegexpMatchHard_32-4 3.07MB/s ± 0% 3.18MB/s ± 0% +3.72% (p=0.000 n=29+26) RegexpMatchHard_1K-4 3.35MB/s ± 0% 3.40MB/s ± 0% +1.69% (p=0.000 n=30+30) Revcomp-4 101MB/s ± 0% 101MB/s ± 0% -0.18% (p=0.018 n=26+27) Template-4 4.92MB/s ± 4% 5.09MB/s ± 3% +3.31% (p=0.000 n=28+28) [Geo mean] 22.4MB/s 22.6MB/s +0.62% Change-Id: I8f304b272785739f57b3c8f736316f658f8c1b2a Reviewed-on: https://go-review.googlesource.com/129119 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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Matthew Dempsky
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f7a633aa79 |
cmd/compile: use "N variables but M values" error for OAS
Makes the error message more consistent between OAS and OAS2. Fixes #26616. Change-Id: I07ab46c5ef8a37efb2cb557632697f5d1bf789f7 Reviewed-on: https://go-review.googlesource.com/131280 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org> |
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Alexey Naidonov
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669fa8f36a |
cmd/compile: remove unnecessary nil-check
Removes unnecessary nil-check when referencing offset from an address. Suggested by Keith Randall in golang/go#27180. Updates golang/go#27180 Change-Id: I326ed7fda7cfa98b7e4354c811900707fee26021 Reviewed-on: https://go-review.googlesource.com/131735 Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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Iskander Sharipov
|
67ac554d79 |
cmd/compile/internal/gc: fix invalid positions for sink nodes in esc.go
Make OAS2 and OAS2FUNC sink locations point to the assignment position, not the nth LHS position. Fixes #26987 Change-Id: Ibeb9df2da754da8b6638fe1e49e813f37515c13c Reviewed-on: https://go-review.googlesource.com/129315 Run-TryBot: Iskander Sharipov <iskander.sharipov@intel.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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Michael Munday
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6f9b94ab66 |
cmd/compile: implement OnesCount{8,16,32,64} intrinsics on s390x
This CL implements the math/bits.OnesCount{8,16,32,64} functions
as intrinsics on s390x using the 'population count' (popcnt)
instruction. This instruction was released as the 'population-count'
facility which uses the same facility bit (45) as the
'distinct-operands' facility which is a pre-requisite for Go on
s390x. We can therefore use it without a feature check.
The s390x popcnt instruction treats a 64 bit register as a vector
of 8 bytes, summing the number of ones in each byte individually.
It then writes the results to the corresponding bytes in the
output register. Therefore to implement OnesCount{16,32,64} we
need to sum the individual byte counts using some extra
instructions. To do this efficiently I've added some additional
pseudo operations to the s390x SSA backend.
Unlike other architectures the new instruction sequence is faster
for OnesCount8, so that is implemented using the intrinsic.
name old time/op new time/op delta
OnesCount 3.21ns ± 1% 1.35ns ± 0% -58.00% (p=0.000 n=20+20)
OnesCount8 0.91ns ± 1% 0.81ns ± 0% -11.43% (p=0.000 n=20+20)
OnesCount16 1.51ns ± 3% 1.21ns ± 0% -19.71% (p=0.000 n=20+17)
OnesCount32 1.91ns ± 0% 1.12ns ± 1% -41.60% (p=0.000 n=19+20)
OnesCount64 3.18ns ± 4% 1.35ns ± 0% -57.52% (p=0.000 n=20+20)
Change-Id: Id54f0bd28b6db9a887ad12c0d72fcc168ef9c4e0
Reviewed-on: https://go-review.googlesource.com/114675
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
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Iskander Sharipov
|
ff468a43be |
cmd/compile/internal/gc: better handling of self-assignments in esc.go
Teach escape analysis to recognize these assignment patterns as not causing the src to leak: val.x = val.y val.x[i] = val.y[j] val.x1.x2 = val.x1.y2 ... etc Helps to avoid "leaking param" with assignments showed above. The implementation is based on somewhat similiar xs=xs[a:b] special case that is ignored by the escape analysis. We may figure out more generalized version of this, but this one looks like a safe step into that direction. Updates #14858 Change-Id: I6fe5bfedec9c03bdc1d7624883324a523bd11fde Reviewed-on: https://go-review.googlesource.com/126395 Run-TryBot: Iskander Sharipov <iskander.sharipov@intel.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> |
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Giovanni Bajo
|
dd5e9b32ff |
cmd/compile: add testcase for #24876
This is still not fixed, the testcase reflects that there are still a few boundchecks. Let's fix the good alternative with an explicit test though. Updates #24876 Change-Id: I4da35eb353e19052bd7b69ea6190a69ced8b9b3d Reviewed-on: https://go-review.googlesource.com/107355 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Giovanni Bajo <rasky@develer.com> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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Giovanni Bajo
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f02cc88f46 |
test: relax whitespaces matching in codegen tests
The codegen testsuite uses regexp to parse the syntax, but it doesn't have a way to tell line comments containing checks from line comments containing English sentences. This means that any syntax error (that is, non-matching regexp) is currently ignored and not reported. There were some tests in memcombine.go that had an extraneous space and were thus effectively disabled. It would be great if we could report it as a syntax error, but for now we just punt and swallow the spaces as a workaround, to avoid the same mistake again. Fixes #25452 Change-Id: Ic7747a2278bc00adffd0c199ce40937acbbc9cf0 Reviewed-on: https://go-review.googlesource.com/113835 Run-TryBot: Giovanni Bajo <rasky@develer.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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Giovanni Bajo
|
09ea3c08e8 |
cmd/compile: in prove, fix fence-post implications for unsigned domain
Fence-post implications of the form "x-1 >= w && x > min ⇒ x > w" were not correctly handling unsigned domain, by always checking signed limits. This bug was uncovered once we taught prove that len(x) is always >= 0 in the signed domain. In the code being miscompiled (s[len(s)-1]), prove checks whether len(s)-1 >= len(s) in the unsigned domain; if it proves that this is always false, it can remove the bound check. Notice that len(s)-1 >= len(s) can be true for len(s) = 0 because of the wrap-around, so this is something prove should not be able to deduce. But because of the bug, the gate condition for the fence-post implication was len(s) > MinInt64 instead of len(s) > 0; that condition would be good in the signed domain but not in the unsigned domain. And since in CL105635 we taught prove that len(s) >= 0, the condition incorrectly triggered (len(s) >= 0 > MinInt64) and things were going downfall. Fixes #27251 Fixes #27289 Change-Id: I3dbcb1955ac5a66a0dcbee500f41e8d219409be5 Reviewed-on: https://go-review.googlesource.com/132495 Reviewed-by: Keith Randall <khr@golang.org> |
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Andrew Bonventre
|
5ac2476748 |
cmd/compile: make math/bits.RotateLeft* an intrinsic on amd64
Previously, pattern matching was good enough to achieve good performance for the RotateLeft* functions, but the inlining cost for them was much too high. Make RotateLeft* intrinsic on amd64 as a stop-gap for now to reduce inlining costs. This should be done (or at least looked at) for other architectures as well. Updates golang/go#17566 Change-Id: I6a106ff00b6c4e3f490650af3e083ed2be00c819 Reviewed-on: https://go-review.googlesource.com/132435 Run-TryBot: Andrew Bonventre <andybons@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> |
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Cherry Zhang
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289dce24c1 |
test: fix nosplit test on 386
The 120->124 change in https://go-review.googlesource.com/c/go/+/61511/21/test/nosplit.go#143 looks accidental. Change back to 120. Change-Id: I1690a8ae2d32756ba05544d2ed1baabfa64e1704 Reviewed-on: https://go-review.googlesource.com/131958 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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Cherry Zhang
|
54f9c0416a |
cmd/compile: count nil check as use in dead auto elim
Nil check is special in that it has no use but we must keep it. Count it as a use of the auto. Fixes #27278. Change-Id: I857c3d0db2ebdca1bc342b4993c0dac5c01e067f Reviewed-on: https://go-review.googlesource.com/131955 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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Zheng Xu
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8f4fd3f34e |
build: support frame-pointer for arm64
Supporting frame-pointer makes Linux's perf and other profilers much more useful because it lets them gather a stack trace efficiently on profiling events. Major changes include: 1. save FP on the word below where RSP is pointing to (proposed by Cherry and Austin) 2. adjust some specific offsets in runtime assembly and wrapper code 3. add support to FP in goroutine scheduler 4. adjust link stack overflow check to take the extra word into account 5. adjust nosplit test cases to enable frame sizes which are 16 bytes aligned Performance impacts on go1 benchmarks: Enable frame-pointer (by default) name old time/op new time/op delta BinaryTree17-46 5.94s ± 0% 6.00s ± 0% +1.03% (p=0.029 n=4+4) Fannkuch11-46 2.84s ± 1% 2.77s ± 0% -2.58% (p=0.008 n=5+5) FmtFprintfEmpty-46 55.0ns ± 1% 58.9ns ± 1% +7.06% (p=0.008 n=5+5) FmtFprintfString-46 102ns ± 0% 105ns ± 0% +2.94% (p=0.008 n=5+5) FmtFprintfInt-46 118ns ± 0% 117ns ± 1% -1.19% (p=0.000 n=4+5) FmtFprintfIntInt-46 181ns ± 0% 182ns ± 1% ~ (p=0.444 n=5+5) FmtFprintfPrefixedInt-46 215ns ± 1% 214ns ± 0% ~ (p=0.254 n=5+4) FmtFprintfFloat-46 292ns ± 0% 296ns ± 0% +1.46% (p=0.029 n=4+4) FmtManyArgs-46 720ns ± 0% 732ns ± 0% +1.72% (p=0.008 n=5+5) GobDecode-46 9.82ms ± 1% 10.03ms ± 2% +2.10% (p=0.008 n=5+5) GobEncode-46 8.14ms ± 0% 8.72ms ± 1% +7.14% (p=0.008 n=5+5) Gzip-46 420ms ± 0% 424ms ± 0% +0.92% (p=0.008 n=5+5) Gunzip-46 48.2ms ± 0% 48.4ms ± 0% +0.41% (p=0.008 n=5+5) HTTPClientServer-46 201µs ± 4% 201µs ± 0% ~ (p=0.730 n=5+4) JSONEncode-46 17.1ms ± 0% 17.7ms ± 1% +3.80% (p=0.008 n=5+5) JSONDecode-46 88.0ms ± 0% 90.1ms ± 0% +2.42% (p=0.008 n=5+5) Mandelbrot200-46 5.06ms ± 0% 5.07ms ± 0% ~ (p=0.310 n=5+5) GoParse-46 5.04ms ± 0% 5.12ms ± 0% +1.53% (p=0.008 n=5+5) RegexpMatchEasy0_32-46 117ns ± 0% 117ns ± 0% ~ (all equal) RegexpMatchEasy0_1K-46 332ns ± 0% 329ns ± 0% -0.78% (p=0.008 n=5+5) RegexpMatchEasy1_32-46 104ns ± 0% 113ns ± 0% +8.65% (p=0.029 n=4+4) RegexpMatchEasy1_1K-46 563ns ± 0% 569ns ± 0% +1.10% (p=0.008 n=5+5) RegexpMatchMedium_32-46 167ns ± 2% 177ns ± 1% +5.74% (p=0.008 n=5+5) RegexpMatchMedium_1K-46 49.5µs ± 0% 53.4µs ± 0% +7.81% (p=0.008 n=5+5) RegexpMatchHard_32-46 2.56µs ± 1% 2.72µs ± 0% +6.01% (p=0.008 n=5+5) RegexpMatchHard_1K-46 77.0µs ± 0% 81.8µs ± 0% +6.24% (p=0.016 n=5+4) Revcomp-46 631ms ± 1% 627ms ± 1% ~ (p=0.095 n=5+5) Template-46 81.8ms ± 0% 86.3ms ± 0% +5.55% (p=0.008 n=5+5) TimeParse-46 423ns ± 0% 432ns ± 0% +2.32% (p=0.008 n=5+5) TimeFormat-46 478ns ± 2% 497ns ± 1% +3.89% (p=0.008 n=5+5) [Geo mean] 71.6µs 73.3µs +2.45% name old speed new speed delta GobDecode-46 78.1MB/s ± 1% 76.6MB/s ± 2% -2.04% (p=0.008 n=5+5) GobEncode-46 94.3MB/s ± 0% 88.0MB/s ± 1% -6.67% (p=0.008 n=5+5) Gzip-46 46.2MB/s ± 0% 45.8MB/s ± 0% -0.91% (p=0.008 n=5+5) Gunzip-46 403MB/s ± 0% 401MB/s ± 0% -0.41% (p=0.008 n=5+5) JSONEncode-46 114MB/s ± 0% 109MB/s ± 1% -3.66% (p=0.008 n=5+5) JSONDecode-46 22.0MB/s ± 0% 21.5MB/s ± 0% -2.35% (p=0.008 n=5+5) GoParse-46 11.5MB/s ± 0% 11.3MB/s ± 0% -1.51% (p=0.008 n=5+5) RegexpMatchEasy0_32-46 272MB/s ± 0% 272MB/s ± 1% ~ (p=0.190 n=4+5) RegexpMatchEasy0_1K-46 3.08GB/s ± 0% 3.11GB/s ± 0% +0.77% (p=0.008 n=5+5) RegexpMatchEasy1_32-46 306MB/s ± 0% 283MB/s ± 0% -7.63% (p=0.029 n=4+4) RegexpMatchEasy1_1K-46 1.82GB/s ± 0% 1.80GB/s ± 0% -1.07% (p=0.008 n=5+5) RegexpMatchMedium_32-46 5.99MB/s ± 0% 5.64MB/s ± 1% -5.77% (p=0.016 n=4+5) RegexpMatchMedium_1K-46 20.7MB/s ± 0% 19.2MB/s ± 0% -7.25% (p=0.008 n=5+5) RegexpMatchHard_32-46 12.5MB/s ± 1% 11.8MB/s ± 0% -5.66% (p=0.008 n=5+5) RegexpMatchHard_1K-46 13.3MB/s ± 0% 12.5MB/s ± 1% -6.01% (p=0.008 n=5+5) Revcomp-46 402MB/s ± 1% 405MB/s ± 1% ~ (p=0.095 n=5+5) Template-46 23.7MB/s ± 0% 22.5MB/s ± 0% -5.25% (p=0.008 n=5+5) [Geo mean] 82.2MB/s 79.6MB/s -3.26% Disable frame-pointer (GOEXPERIMENT=noframepointer) name old time/op new time/op delta BinaryTree17-46 5.94s ± 0% 5.96s ± 0% +0.39% (p=0.029 n=4+4) Fannkuch11-46 2.84s ± 1% 2.79s ± 1% -1.68% (p=0.008 n=5+5) FmtFprintfEmpty-46 55.0ns ± 1% 55.2ns ± 3% ~ (p=0.794 n=5+5) FmtFprintfString-46 102ns ± 0% 103ns ± 0% +0.98% (p=0.016 n=5+4) FmtFprintfInt-46 118ns ± 0% 115ns ± 0% -2.54% (p=0.029 n=4+4) FmtFprintfIntInt-46 181ns ± 0% 179ns ± 0% -1.10% (p=0.000 n=5+4) FmtFprintfPrefixedInt-46 215ns ± 1% 213ns ± 0% ~ (p=0.143 n=5+4) FmtFprintfFloat-46 292ns ± 0% 300ns ± 0% +2.83% (p=0.029 n=4+4) FmtManyArgs-46 720ns ± 0% 739ns ± 0% +2.64% (p=0.008 n=5+5) GobDecode-46 9.82ms ± 1% 9.78ms ± 1% ~ (p=0.151 n=5+5) GobEncode-46 8.14ms ± 0% 8.12ms ± 1% ~ (p=0.690 n=5+5) Gzip-46 420ms ± 0% 420ms ± 0% ~ (p=0.548 n=5+5) Gunzip-46 48.2ms ± 0% 48.0ms ± 0% -0.33% (p=0.032 n=5+5) HTTPClientServer-46 201µs ± 4% 199µs ± 3% ~ (p=0.548 n=5+5) JSONEncode-46 17.1ms ± 0% 17.2ms ± 0% ~ (p=0.056 n=5+5) JSONDecode-46 88.0ms ± 0% 88.6ms ± 0% +0.64% (p=0.008 n=5+5) Mandelbrot200-46 5.06ms ± 0% 5.07ms ± 0% ~ (p=0.548 n=5+5) GoParse-46 5.04ms ± 0% 5.07ms ± 0% +0.65% (p=0.008 n=5+5) RegexpMatchEasy0_32-46 117ns ± 0% 112ns ± 4% -4.27% (p=0.016 n=4+5) RegexpMatchEasy0_1K-46 332ns ± 0% 330ns ± 1% ~ (p=0.095 n=5+5) RegexpMatchEasy1_32-46 104ns ± 0% 110ns ± 1% +5.29% (p=0.029 n=4+4) RegexpMatchEasy1_1K-46 563ns ± 0% 567ns ± 2% ~ (p=0.151 n=5+5) RegexpMatchMedium_32-46 167ns ± 2% 166ns ± 0% ~ (p=0.333 n=5+4) RegexpMatchMedium_1K-46 49.5µs ± 0% 49.6µs ± 0% ~ (p=0.841 n=5+5) RegexpMatchHard_32-46 2.56µs ± 1% 2.49µs ± 0% -2.81% (p=0.008 n=5+5) RegexpMatchHard_1K-46 77.0µs ± 0% 75.8µs ± 0% -1.55% (p=0.008 n=5+5) Revcomp-46 631ms ± 1% 628ms ± 0% ~ (p=0.095 n=5+5) Template-46 81.8ms ± 0% 84.3ms ± 1% +3.05% (p=0.008 n=5+5) TimeParse-46 423ns ± 0% 425ns ± 0% +0.52% (p=0.008 n=5+5) TimeFormat-46 478ns ± 2% 478ns ± 1% ~ (p=1.000 n=5+5) [Geo mean] 71.6µs 71.6µs -0.01% name old speed new speed delta GobDecode-46 78.1MB/s ± 1% 78.5MB/s ± 1% ~ (p=0.151 n=5+5) GobEncode-46 94.3MB/s ± 0% 94.5MB/s ± 1% ~ (p=0.690 n=5+5) Gzip-46 46.2MB/s ± 0% 46.2MB/s ± 0% ~ (p=0.571 n=5+5) Gunzip-46 403MB/s ± 0% 404MB/s ± 0% +0.33% (p=0.032 n=5+5) JSONEncode-46 114MB/s ± 0% 113MB/s ± 0% ~ (p=0.056 n=5+5) JSONDecode-46 22.0MB/s ± 0% 21.9MB/s ± 0% -0.64% (p=0.008 n=5+5) GoParse-46 11.5MB/s ± 0% 11.4MB/s ± 0% -0.64% (p=0.008 n=5+5) RegexpMatchEasy0_32-46 272MB/s ± 0% 285MB/s ± 4% +4.74% (p=0.016 n=4+5) RegexpMatchEasy0_1K-46 3.08GB/s ± 0% 3.10GB/s ± 1% ~ (p=0.151 n=5+5) RegexpMatchEasy1_32-46 306MB/s ± 0% 290MB/s ± 1% -5.21% (p=0.029 n=4+4) RegexpMatchEasy1_1K-46 1.82GB/s ± 0% 1.81GB/s ± 2% ~ (p=0.151 n=5+5) RegexpMatchMedium_32-46 5.99MB/s ± 0% 6.02MB/s ± 1% ~ (p=0.063 n=4+5) RegexpMatchMedium_1K-46 20.7MB/s ± 0% 20.7MB/s ± 0% ~ (p=0.659 n=5+5) RegexpMatchHard_32-46 12.5MB/s ± 1% 12.8MB/s ± 0% +2.88% (p=0.008 n=5+5) RegexpMatchHard_1K-46 13.3MB/s ± 0% 13.5MB/s ± 0% +1.58% (p=0.008 n=5+5) Revcomp-46 402MB/s ± 1% 405MB/s ± 0% ~ (p=0.095 n=5+5) Template-46 23.7MB/s ± 0% 23.0MB/s ± 1% -2.95% (p=0.008 n=5+5) [Geo mean] 82.2MB/s 82.3MB/s +0.04% Frame-pointer is enabled on Linux by default but can be disabled by setting: GOEXPERIMENT=noframepointer. Fixes #10110 Change-Id: I1bfaca6dba29a63009d7c6ab04ed7a1413d9479e Reviewed-on: https://go-review.googlesource.com/61511 Reviewed-by: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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Dave Brophy
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7c7cecc184 |
fmt: fix incorrect format of whole-number floats when using %#v
This fixes the unwanted behaviour where printing a zero float with the
#v fmt verb outputs "0" - e.g. missing the trailing decimal. This means
that the output would be interpreted as an int rather than a float when
parsed as Go source. After this change the the output is "0.0".
Fixes #26363
Change-Id: Ic5c060522459cd5ce077675d47c848b22ddc34fa
GitHub-Last-Rev:
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Ben Shi
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3ca3e89bb6 |
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> |
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Ben Shi
|
2b69ad0b3c |
cmd/compile: optimize arm's comparison
The CMP/CMN/TST/TEQ perform similar to SUB/ADD/AND/XOR except the result is abondoned, and only NZCV flags are affected. This CL implements further optimization with them. 1. A micro benchmark test gets more than 9% improvment. TSTTEQ-4 6.99ms ± 0% 6.35ms ± 0% -9.15% (p=0.000 n=33+36) (https://github.com/benshi001/ugo1/blob/master/tstteq2_test.go) 2. The go1 benckmark shows no regression, excluding noise. name old time/op new time/op delta BinaryTree17-4 25.7s ± 1% 25.7s ± 1% ~ (p=0.830 n=40+40) Fannkuch11-4 13.3s ± 0% 13.2s ± 0% -0.65% (p=0.000 n=40+34) FmtFprintfEmpty-4 394ns ± 0% 394ns ± 0% ~ (p=0.819 n=40+40) FmtFprintfString-4 677ns ± 0% 677ns ± 0% +0.06% (p=0.039 n=39+40) FmtFprintfInt-4 707ns ± 0% 706ns ± 0% -0.14% (p=0.000 n=40+39) FmtFprintfIntInt-4 1.04µs ± 0% 1.04µs ± 0% +0.10% (p=0.000 n=29+31) FmtFprintfPrefixedInt-4 1.10µs ± 0% 1.11µs ± 0% +0.65% (p=0.000 n=39+37) FmtFprintfFloat-4 2.27µs ± 0% 2.26µs ± 0% -0.53% (p=0.000 n=39+40) FmtManyArgs-4 3.96µs ± 0% 3.96µs ± 0% +0.10% (p=0.000 n=39+40) GobDecode-4 53.4ms ± 1% 52.8ms ± 2% -1.10% (p=0.000 n=39+39) GobEncode-4 50.3ms ± 3% 50.4ms ± 2% ~ (p=0.089 n=40+39) Gzip-4 2.62s ± 0% 2.64s ± 0% +0.60% (p=0.000 n=40+39) Gunzip-4 312ms ± 0% 312ms ± 0% +0.02% (p=0.030 n=40+39) HTTPClientServer-4 1.01ms ± 7% 0.98ms ± 7% -2.37% (p=0.000 n=40+39) JSONEncode-4 126ms ± 1% 126ms ± 1% -0.38% (p=0.004 n=39+39) JSONDecode-4 423ms ± 0% 426ms ± 2% +0.72% (p=0.001 n=39+40) Mandelbrot200-4 18.4ms ± 0% 18.4ms ± 0% +0.04% (p=0.000 n=38+40) GoParse-4 22.8ms ± 0% 22.6ms ± 0% -0.68% (p=0.000 n=35+40) RegexpMatchEasy0_32-4 699ns ± 0% 704ns ± 0% +0.73% (p=0.000 n=27+40) RegexpMatchEasy0_1K-4 4.27µs ± 0% 4.26µs ± 0% -0.09% (p=0.000 n=35+38) RegexpMatchEasy1_32-4 741ns ± 0% 735ns ± 0% -0.85% (p=0.000 n=40+35) RegexpMatchEasy1_1K-4 5.53µs ± 0% 5.49µs ± 0% -0.69% (p=0.000 n=39+40) RegexpMatchMedium_32-4 1.07µs ± 0% 1.04µs ± 2% -2.34% (p=0.000 n=40+40) RegexpMatchMedium_1K-4 261µs ± 0% 261µs ± 0% -0.16% (p=0.000 n=40+39) RegexpMatchHard_32-4 14.9µs ± 0% 14.9µs ± 0% -0.18% (p=0.000 n=39+40) RegexpMatchHard_1K-4 445µs ± 0% 446µs ± 0% +0.09% (p=0.000 n=36+34) Revcomp-4 41.8ms ± 1% 41.8ms ± 1% ~ (p=0.595 n=39+38) Template-4 530ms ± 1% 528ms ± 1% -0.49% (p=0.000 n=40+40) TimeParse-4 3.39µs ± 0% 3.42µs ± 0% +0.98% (p=0.000 n=36+38) TimeFormat-4 6.12µs ± 0% 6.07µs ± 0% -0.81% (p=0.000 n=34+38) [Geo mean] 384µs 383µs -0.24% name old speed new speed delta GobDecode-4 14.4MB/s ± 1% 14.5MB/s ± 2% +1.11% (p=0.000 n=39+39) GobEncode-4 15.3MB/s ± 3% 15.2MB/s ± 2% ~ (p=0.104 n=40+39) Gzip-4 7.40MB/s ± 1% 7.36MB/s ± 0% -0.60% (p=0.000 n=40+39) Gunzip-4 62.2MB/s ± 0% 62.1MB/s ± 0% -0.02% (p=0.047 n=40+39) JSONEncode-4 15.4MB/s ± 1% 15.4MB/s ± 2% +0.39% (p=0.002 n=39+39) JSONDecode-4 4.59MB/s ± 0% 4.56MB/s ± 2% -0.71% (p=0.000 n=39+40) GoParse-4 2.54MB/s ± 0% 2.56MB/s ± 0% +0.72% (p=0.000 n=26+40) RegexpMatchEasy0_32-4 45.8MB/s ± 0% 45.4MB/s ± 0% -0.75% (p=0.000 n=38+40) RegexpMatchEasy0_1K-4 240MB/s ± 0% 240MB/s ± 0% +0.09% (p=0.000 n=35+38) RegexpMatchEasy1_32-4 43.1MB/s ± 0% 43.5MB/s ± 0% +0.84% (p=0.000 n=40+39) RegexpMatchEasy1_1K-4 185MB/s ± 0% 186MB/s ± 0% +0.69% (p=0.000 n=39+40) RegexpMatchMedium_32-4 936kB/s ± 1% 959kB/s ± 2% +2.38% (p=0.000 n=40+40) RegexpMatchMedium_1K-4 3.92MB/s ± 0% 3.93MB/s ± 0% +0.18% (p=0.000 n=39+40) RegexpMatchHard_32-4 2.15MB/s ± 0% 2.15MB/s ± 0% +0.19% (p=0.000 n=40+40) RegexpMatchHard_1K-4 2.30MB/s ± 0% 2.30MB/s ± 0% ~ (all equal) Revcomp-4 60.8MB/s ± 1% 60.8MB/s ± 1% ~ (p=0.600 n=39+38) Template-4 3.66MB/s ± 1% 3.68MB/s ± 1% +0.46% (p=0.000 n=40+40) [Geo mean] 12.8MB/s 12.8MB/s +0.27% Change-Id: I849161169ecf0876a04b7c1d3990fa8d1435215e Reviewed-on: https://go-review.googlesource.com/122855 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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Alberto Donizetti
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42cc4ca30a |
cmd/compile: prevent overflow in walkinrange
In the compiler frontend, walkinrange indiscriminately calls Int64() on const CTINT nodes, even though Int64's return value is undefined for anything over 2⁶³ (in practise, it'll return a negative number). This causes the introduction of bad constants during rewrites of unsigned expressions, which make the compiler reject valid Go programs. This change introduces a preliminary check that Int64() is safe to call on the consts on hand. If it isn't, walkinrange exits without doing any rewrite. Fixes #27143 Change-Id: I2017073cae65468a521ff3262d4ea8ab0d7098d9 Reviewed-on: https://go-review.googlesource.com/130735 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com> |
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Ben Shi
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e03220a594 |
cmd/compile: optimize 386 code with FLDPI
FLDPI pushes the constant pi to 387's register stack, which is more efficient than MOVSSconst/MOVSDconst. 1. This optimization reduces 0.3KB of the total size of pkg/linux_386 (exlcuding cmd/compile). 2. There is little regression in the go1 benchmark. name old time/op new time/op delta BinaryTree17-4 3.30s ± 3% 3.30s ± 2% ~ (p=0.759 n=40+39) Fannkuch11-4 3.53s ± 1% 3.54s ± 1% ~ (p=0.168 n=40+40) FmtFprintfEmpty-4 45.5ns ± 3% 45.6ns ± 3% ~ (p=0.553 n=40+40) FmtFprintfString-4 78.4ns ± 3% 78.3ns ± 3% ~ (p=0.593 n=40+40) FmtFprintfInt-4 88.8ns ± 2% 89.9ns ± 2% ~ (p=0.083 n=40+33) FmtFprintfIntInt-4 140ns ± 4% 140ns ± 4% ~ (p=0.656 n=40+40) FmtFprintfPrefixedInt-4 180ns ± 2% 181ns ± 3% +0.53% (p=0.050 n=40+40) FmtFprintfFloat-4 408ns ± 4% 411ns ± 3% ~ (p=0.112 n=40+40) FmtManyArgs-4 599ns ± 3% 602ns ± 3% ~ (p=0.784 n=40+40) GobDecode-4 7.24ms ± 6% 7.30ms ± 5% ~ (p=0.171 n=40+40) GobEncode-4 6.98ms ± 5% 6.89ms ± 8% ~ (p=0.107 n=40+40) Gzip-4 396ms ± 4% 396ms ± 3% ~ (p=0.852 n=40+40) Gunzip-4 41.3ms ± 3% 41.5ms ± 4% ~ (p=0.221 n=40+40) HTTPClientServer-4 63.4µs ± 3% 63.4µs ± 2% ~ (p=0.895 n=39+40) JSONEncode-4 17.5ms ± 2% 17.5ms ± 3% ~ (p=0.090 n=40+40) JSONDecode-4 60.6ms ± 3% 60.1ms ± 4% ~ (p=0.184 n=40+40) Mandelbrot200-4 7.80ms ± 3% 7.78ms ± 2% ~ (p=0.512 n=40+40) GoParse-4 3.30ms ± 3% 3.28ms ± 2% -0.61% (p=0.034 n=40+40) RegexpMatchEasy0_32-4 104ns ± 4% 103ns ± 4% ~ (p=0.118 n=40+40) RegexpMatchEasy0_1K-4 850ns ± 2% 848ns ± 2% ~ (p=0.370 n=40+40) RegexpMatchEasy1_32-4 112ns ± 4% 112ns ± 4% ~ (p=0.848 n=40+40) RegexpMatchEasy1_1K-4 1.04µs ± 4% 1.03µs ± 4% ~ (p=0.333 n=40+40) RegexpMatchMedium_32-4 132ns ± 4% 131ns ± 3% ~ (p=0.527 n=40+40) RegexpMatchMedium_1K-4 43.4µs ± 3% 43.5µs ± 3% ~ (p=0.111 n=40+40) RegexpMatchHard_32-4 2.24µs ± 4% 2.24µs ± 4% ~ (p=0.441 n=40+40) RegexpMatchHard_1K-4 67.9µs ± 3% 68.0µs ± 3% ~ (p=0.095 n=40+40) Revcomp-4 1.84s ± 2% 1.84s ± 2% ~ (p=0.677 n=40+40) Template-4 68.4ms ± 3% 68.6ms ± 3% ~ (p=0.345 n=40+40) TimeParse-4 433ns ± 3% 433ns ± 3% ~ (p=0.403 n=40+40) TimeFormat-4 407ns ± 3% 406ns ± 3% ~ (p=0.900 n=40+40) [Geo mean] 67.1µs 67.2µs +0.04% name old speed new speed delta GobDecode-4 106MB/s ± 5% 105MB/s ± 5% ~ (p=0.173 n=40+40) GobEncode-4 110MB/s ± 5% 112MB/s ± 9% ~ (p=0.104 n=40+40) Gzip-4 49.0MB/s ± 4% 49.1MB/s ± 4% ~ (p=0.836 n=40+40) Gunzip-4 471MB/s ± 3% 468MB/s ± 4% ~ (p=0.218 n=40+40) JSONEncode-4 111MB/s ± 2% 111MB/s ± 3% ~ (p=0.090 n=40+40) JSONDecode-4 32.0MB/s ± 3% 32.3MB/s ± 4% ~ (p=0.194 n=40+40) GoParse-4 17.6MB/s ± 3% 17.7MB/s ± 2% +0.62% (p=0.035 n=40+40) RegexpMatchEasy0_32-4 307MB/s ± 4% 309MB/s ± 4% +0.70% (p=0.041 n=40+40) RegexpMatchEasy0_1K-4 1.20GB/s ± 3% 1.21GB/s ± 2% ~ (p=0.353 n=40+40) RegexpMatchEasy1_32-4 285MB/s ± 3% 284MB/s ± 4% ~ (p=0.384 n=40+40) RegexpMatchEasy1_1K-4 988MB/s ± 4% 992MB/s ± 3% ~ (p=0.335 n=40+40) RegexpMatchMedium_32-4 7.56MB/s ± 4% 7.57MB/s ± 4% ~ (p=0.314 n=40+40) RegexpMatchMedium_1K-4 23.6MB/s ± 3% 23.6MB/s ± 3% ~ (p=0.107 n=40+40) RegexpMatchHard_32-4 14.3MB/s ± 4% 14.3MB/s ± 4% ~ (p=0.429 n=40+40) RegexpMatchHard_1K-4 15.1MB/s ± 3% 15.1MB/s ± 3% ~ (p=0.099 n=40+40) Revcomp-4 138MB/s ± 2% 138MB/s ± 2% ~ (p=0.658 n=40+40) Template-4 28.4MB/s ± 3% 28.3MB/s ± 3% ~ (p=0.331 n=40+40) [Geo mean] 80.8MB/s 80.8MB/s +0.09% Change-Id: I0cb715eead68ade097a302e7fb80ccbd1d1b511e Reviewed-on: https://go-review.googlesource.com/130975 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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Ben Shi
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3bc34385fa |
cmd/compile: introduce more read-modify-write operations for amd64
Add suport of read-modify-write for AND/SUB/AND/OR/XOR on amd64. 1. The total size of pkg/linux_amd64 decreases about 4KB, excluding cmd/compile. 2. The go1 benchmark shows a little improvement, excluding noise. name old time/op new time/op delta BinaryTree17-4 2.63s ± 3% 2.65s ± 4% +1.01% (p=0.037 n=35+35) Fannkuch11-4 2.33s ± 2% 2.39s ± 2% +2.49% (p=0.000 n=35+35) FmtFprintfEmpty-4 45.4ns ± 5% 40.8ns ± 6% -10.09% (p=0.000 n=35+35) FmtFprintfString-4 73.3ns ± 4% 70.9ns ± 3% -3.23% (p=0.000 n=30+35) FmtFprintfInt-4 79.9ns ± 4% 79.5ns ± 3% ~ (p=0.736 n=34+35) FmtFprintfIntInt-4 126ns ± 4% 125ns ± 4% ~ (p=0.083 n=35+35) FmtFprintfPrefixedInt-4 152ns ± 6% 152ns ± 3% ~ (p=0.855 n=34+35) FmtFprintfFloat-4 215ns ± 4% 213ns ± 4% ~ (p=0.066 n=35+35) FmtManyArgs-4 522ns ± 3% 506ns ± 3% -3.15% (p=0.000 n=35+35) GobDecode-4 6.45ms ± 8% 6.51ms ± 7% +0.96% (p=0.026 n=35+35) GobEncode-4 6.10ms ± 6% 6.02ms ± 8% ~ (p=0.160 n=35+35) Gzip-4 228ms ± 3% 221ms ± 3% -2.92% (p=0.000 n=35+35) Gunzip-4 37.5ms ± 4% 37.2ms ± 3% -0.78% (p=0.036 n=35+35) HTTPClientServer-4 58.7µs ± 2% 59.2µs ± 1% +0.80% (p=0.000 n=33+33) JSONEncode-4 12.0ms ± 3% 12.2ms ± 3% +1.84% (p=0.008 n=35+35) JSONDecode-4 57.0ms ± 4% 56.6ms ± 3% ~ (p=0.320 n=35+35) Mandelbrot200-4 3.82ms ± 3% 3.79ms ± 3% ~ (p=0.074 n=35+35) GoParse-4 3.21ms ± 5% 3.24ms ± 4% ~ (p=0.119 n=35+35) RegexpMatchEasy0_32-4 76.3ns ± 4% 75.4ns ± 4% -1.14% (p=0.014 n=34+33) RegexpMatchEasy0_1K-4 251ns ± 4% 254ns ± 3% +1.28% (p=0.016 n=35+35) RegexpMatchEasy1_32-4 69.6ns ± 3% 70.1ns ± 3% +0.82% (p=0.005 n=35+35) RegexpMatchEasy1_1K-4 367ns ± 4% 376ns ± 4% +2.47% (p=0.000 n=35+35) RegexpMatchMedium_32-4 108ns ± 5% 104ns ± 4% -3.18% (p=0.000 n=35+35) RegexpMatchMedium_1K-4 33.8µs ± 3% 32.7µs ± 3% -3.27% (p=0.000 n=35+35) RegexpMatchHard_32-4 1.55µs ± 3% 1.52µs ± 3% -1.64% (p=0.000 n=35+35) RegexpMatchHard_1K-4 46.6µs ± 3% 46.6µs ± 4% ~ (p=0.149 n=35+35) Revcomp-4 416ms ± 7% 412ms ± 6% -0.95% (p=0.033 n=33+35) Template-4 64.3ms ± 3% 62.4ms ± 7% -2.94% (p=0.000 n=35+35) TimeParse-4 320ns ± 2% 322ns ± 3% ~ (p=0.589 n=35+35) TimeFormat-4 300ns ± 3% 300ns ± 3% ~ (p=0.597 n=35+35) [Geo mean] 47.4µs 47.0µs -0.86% name old speed new speed delta GobDecode-4 119MB/s ± 7% 118MB/s ± 7% -0.96% (p=0.027 n=35+35) GobEncode-4 126MB/s ± 7% 127MB/s ± 6% ~ (p=0.157 n=34+34) Gzip-4 85.3MB/s ± 3% 87.9MB/s ± 3% +3.02% (p=0.000 n=35+35) Gunzip-4 518MB/s ± 4% 522MB/s ± 3% +0.79% (p=0.037 n=35+35) JSONEncode-4 162MB/s ± 3% 159MB/s ± 3% -1.81% (p=0.009 n=35+35) JSONDecode-4 34.1MB/s ± 4% 34.3MB/s ± 3% ~ (p=0.318 n=35+35) GoParse-4 18.0MB/s ± 5% 17.9MB/s ± 4% ~ (p=0.117 n=35+35) RegexpMatchEasy0_32-4 419MB/s ± 3% 425MB/s ± 4% +1.46% (p=0.003 n=32+33) RegexpMatchEasy0_1K-4 4.07GB/s ± 4% 4.02GB/s ± 3% -1.28% (p=0.014 n=35+35) RegexpMatchEasy1_32-4 460MB/s ± 3% 456MB/s ± 4% -0.82% (p=0.004 n=35+35) RegexpMatchEasy1_1K-4 2.79GB/s ± 4% 2.72GB/s ± 4% -2.39% (p=0.000 n=35+35) RegexpMatchMedium_32-4 9.23MB/s ± 4% 9.53MB/s ± 4% +3.16% (p=0.000 n=35+35) RegexpMatchMedium_1K-4 30.3MB/s ± 3% 31.3MB/s ± 3% +3.38% (p=0.000 n=35+35) RegexpMatchHard_32-4 20.7MB/s ± 3% 21.0MB/s ± 3% +1.67% (p=0.000 n=35+35) RegexpMatchHard_1K-4 22.0MB/s ± 3% 21.9MB/s ± 4% ~ (p=0.277 n=35+33) Revcomp-4 612MB/s ± 7% 618MB/s ± 6% +0.96% (p=0.034 n=33+35) Template-4 30.2MB/s ± 3% 31.1MB/s ± 6% +3.05% (p=0.000 n=35+35) [Geo mean] 123MB/s 124MB/s +0.64% Change-Id: Ia025da272e07d0069413824bfff3471b106d6280 Reviewed-on: https://go-review.googlesource.com/121535 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ilya Tocar <ilya.tocar@intel.com> Reviewed-by: Keith Randall <khr@golang.org> |
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Kazuhiro Sera
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ad644d2e86 |
all: fix typos detected by github.com/client9/misspell
Change-Id: Iadb3c5de8ae9ea45855013997ed70f7929a88661
GitHub-Last-Rev:
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Yury Smolsky
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1484270aec |
test: restore tests for the reject unsafe code option
Tests in test/safe were neglected after moving to the run.go framework. This change restores them. These tests are skipped for go/types via -+ option. Fixes #25668 Change-Id: I8fe26574a76fa7afa8664c467d7c2e6334f1bba9 Reviewed-on: https://go-review.googlesource.com/124660 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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Yury Smolsky
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02fecd33f6 |
test: remove errchk, the perl script
gc tests do not depend on errchk. Fixes #25669 Change-Id: I99eb87bb9677897b9167d4fc9a6321fa66cd9116 Reviewed-on: https://go-review.googlesource.com/115955 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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Ben Shi
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a0a7e9fc0c |
cmd/compile: implement "OPC $imm, (mem)" for 386
New read-modify-write operations are introduced in this CL for 386. 1. The total size of pkg/linux_386 decreases about 10KB (excluding cmd/compile). 2. The go1 benchmark shows little regression. name old time/op new time/op delta BinaryTree17-4 3.32s ± 4% 3.29s ± 2% ~ (p=0.059 n=30+30) Fannkuch11-4 3.49s ± 1% 3.46s ± 1% -0.92% (p=0.001 n=30+30) FmtFprintfEmpty-4 47.7ns ± 2% 46.8ns ± 5% -1.93% (p=0.011 n=25+30) FmtFprintfString-4 79.5ns ± 7% 80.2ns ± 3% +0.89% (p=0.001 n=28+29) FmtFprintfInt-4 90.5ns ± 2% 92.1ns ± 2% +1.82% (p=0.014 n=22+30) FmtFprintfIntInt-4 141ns ± 1% 144ns ± 3% +2.23% (p=0.013 n=22+30) FmtFprintfPrefixedInt-4 183ns ± 2% 184ns ± 3% ~ (p=0.080 n=21+30) FmtFprintfFloat-4 409ns ± 3% 412ns ± 3% +0.83% (p=0.040 n=30+30) FmtManyArgs-4 597ns ± 6% 607ns ± 4% +1.71% (p=0.006 n=30+30) GobDecode-4 7.21ms ± 5% 7.18ms ± 6% ~ (p=0.665 n=30+30) GobEncode-4 7.17ms ± 6% 7.09ms ± 7% ~ (p=0.117 n=29+30) Gzip-4 413ms ± 4% 399ms ± 4% -3.48% (p=0.000 n=30+30) Gunzip-4 41.3ms ± 4% 41.7ms ± 3% +1.05% (p=0.011 n=30+30) HTTPClientServer-4 63.5µs ± 3% 62.9µs ± 2% -0.97% (p=0.017 n=30+27) JSONEncode-4 20.3ms ± 5% 20.1ms ± 5% -1.16% (p=0.004 n=30+30) JSONDecode-4 66.2ms ± 4% 67.7ms ± 4% +2.21% (p=0.000 n=30+30) Mandelbrot200-4 5.16ms ± 3% 5.18ms ± 3% ~ (p=0.123 n=30+30) GoParse-4 3.23ms ± 2% 3.27ms ± 2% +1.08% (p=0.006 n=30+30) RegexpMatchEasy0_32-4 98.9ns ± 5% 97.1ns ± 4% -1.83% (p=0.006 n=30+30) RegexpMatchEasy0_1K-4 842ns ± 3% 842ns ± 3% ~ (p=0.550 n=30+30) RegexpMatchEasy1_32-4 107ns ± 4% 105ns ± 4% -1.93% (p=0.012 n=30+30) RegexpMatchEasy1_1K-4 1.03µs ± 4% 1.04µs ± 4% ~ (p=0.304 n=30+30) RegexpMatchMedium_32-4 132ns ± 2% 129ns ± 4% -2.02% (p=0.000 n=21+30) RegexpMatchMedium_1K-4 44.1µs ± 4% 43.8µs ± 3% ~ (p=0.641 n=30+30) RegexpMatchHard_32-4 2.26µs ± 4% 2.23µs ± 4% -1.28% (p=0.023 n=30+30) RegexpMatchHard_1K-4 68.1µs ± 3% 68.6µs ± 4% ~ (p=0.089 n=30+30) Revcomp-4 1.85s ± 2% 1.84s ± 2% ~ (p=0.072 n=30+30) Template-4 69.2ms ± 3% 68.5ms ± 3% -1.04% (p=0.012 n=30+30) TimeParse-4 441ns ± 3% 446ns ± 4% +1.21% (p=0.001 n=30+30) TimeFormat-4 415ns ± 3% 415ns ± 3% ~ (p=0.436 n=30+30) [Geo mean] 67.0µs 66.9µs -0.17% name old speed new speed delta GobDecode-4 107MB/s ± 5% 107MB/s ± 6% ~ (p=0.663 n=30+30) GobEncode-4 107MB/s ± 6% 108MB/s ± 7% ~ (p=0.117 n=29+30) Gzip-4 47.0MB/s ± 4% 48.7MB/s ± 4% +3.61% (p=0.000 n=30+30) Gunzip-4 470MB/s ± 4% 466MB/s ± 4% -1.05% (p=0.011 n=30+30) JSONEncode-4 95.6MB/s ± 5% 96.7MB/s ± 5% +1.16% (p=0.005 n=30+30) JSONDecode-4 29.3MB/s ± 4% 28.7MB/s ± 4% -2.17% (p=0.000 n=30+30) GoParse-4 17.9MB/s ± 2% 17.7MB/s ± 2% -1.06% (p=0.007 n=30+30) RegexpMatchEasy0_32-4 323MB/s ± 5% 329MB/s ± 4% +1.93% (p=0.006 n=30+30) RegexpMatchEasy0_1K-4 1.22GB/s ± 3% 1.22GB/s ± 3% ~ (p=0.496 n=30+30) RegexpMatchEasy1_32-4 298MB/s ± 4% 303MB/s ± 4% +1.84% (p=0.017 n=30+30) RegexpMatchEasy1_1K-4 995MB/s ± 4% 989MB/s ± 4% ~ (p=0.307 n=30+30) RegexpMatchMedium_32-4 7.56MB/s ± 4% 7.74MB/s ± 4% +2.46% (p=0.000 n=22+30) RegexpMatchMedium_1K-4 23.2MB/s ± 4% 23.4MB/s ± 3% ~ (p=0.651 n=30+30) RegexpMatchHard_32-4 14.2MB/s ± 4% 14.3MB/s ± 4% +1.29% (p=0.021 n=30+30) RegexpMatchHard_1K-4 15.0MB/s ± 3% 14.9MB/s ± 4% ~ (p=0.069 n=30+29) Revcomp-4 138MB/s ± 2% 138MB/s ± 2% ~ (p=0.072 n=30+30) Template-4 28.1MB/s ± 3% 28.4MB/s ± 3% +1.05% (p=0.012 n=30+30) [Geo mean] 79.7MB/s 80.2MB/s +0.60% Change-Id: I44a1dfc942c9a385904553c4fe1fa8e509c8aa31 Reviewed-on: https://go-review.googlesource.com/120916 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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Ben Shi
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90f2fa0037 |
cmd/compile: optimize 386 code with MULLload/DIVSSload/DIVSDload
IMULL/DIVSS/DIVSD all can take the source operand from memory directly. And this CL implement that optimization. 1. The total size of pkg/linux_386 decreases about 84KB (excluding cmd/compile). 2. The go1 benchmark shows little regression in total (excluding noise). name old time/op new time/op delta BinaryTree17-4 3.29s ± 2% 3.27s ± 4% ~ (p=0.192 n=30+30) Fannkuch11-4 3.49s ± 2% 3.54s ± 1% +1.48% (p=0.000 n=30+30) FmtFprintfEmpty-4 45.9ns ± 3% 46.3ns ± 4% +0.89% (p=0.037 n=30+30) FmtFprintfString-4 78.8ns ± 3% 78.7ns ± 4% ~ (p=0.209 n=30+27) FmtFprintfInt-4 91.0ns ± 2% 90.3ns ± 2% -0.82% (p=0.031 n=30+27) FmtFprintfIntInt-4 142ns ± 4% 143ns ± 4% ~ (p=0.136 n=30+30) FmtFprintfPrefixedInt-4 181ns ± 3% 183ns ± 4% +1.40% (p=0.005 n=30+30) FmtFprintfFloat-4 404ns ± 4% 408ns ± 3% ~ (p=0.397 n=30+30) FmtManyArgs-4 601ns ± 3% 609ns ± 5% ~ (p=0.059 n=30+30) GobDecode-4 7.21ms ± 5% 7.24ms ± 5% ~ (p=0.612 n=30+30) GobEncode-4 6.91ms ± 6% 6.91ms ± 6% ~ (p=0.797 n=30+30) Gzip-4 398ms ± 6% 399ms ± 4% ~ (p=0.173 n=30+30) Gunzip-4 41.7ms ± 3% 41.8ms ± 3% ~ (p=0.423 n=30+30) HTTPClientServer-4 62.3µs ± 2% 62.7µs ± 3% ~ (p=0.085 n=29+30) JSONEncode-4 21.0ms ± 4% 20.7ms ± 5% -1.39% (p=0.014 n=30+30) JSONDecode-4 66.3ms ± 3% 67.4ms ± 1% +1.71% (p=0.003 n=30+24) Mandelbrot200-4 5.15ms ± 3% 5.16ms ± 3% ~ (p=0.697 n=30+30) GoParse-4 3.24ms ± 3% 3.27ms ± 4% +0.91% (p=0.032 n=30+30) RegexpMatchEasy0_32-4 101ns ± 5% 99ns ± 4% -1.82% (p=0.008 n=29+30) RegexpMatchEasy0_1K-4 848ns ± 4% 841ns ± 2% -0.77% (p=0.043 n=30+30) RegexpMatchEasy1_32-4 106ns ± 6% 106ns ± 3% ~ (p=0.939 n=29+30) RegexpMatchEasy1_1K-4 1.02µs ± 3% 1.03µs ± 4% ~ (p=0.297 n=28+30) RegexpMatchMedium_32-4 129ns ± 4% 127ns ± 4% ~ (p=0.073 n=30+30) RegexpMatchMedium_1K-4 43.9µs ± 3% 43.8µs ± 3% ~ (p=0.186 n=30+30) RegexpMatchHard_32-4 2.24µs ± 4% 2.22µs ± 4% ~ (p=0.332 n=30+29) RegexpMatchHard_1K-4 68.0µs ± 4% 67.5µs ± 3% ~ (p=0.290 n=30+30) Revcomp-4 1.85s ± 3% 1.85s ± 3% ~ (p=0.358 n=30+30) Template-4 69.6ms ± 3% 70.0ms ± 4% ~ (p=0.273 n=30+30) TimeParse-4 445ns ± 3% 441ns ± 3% ~ (p=0.494 n=30+30) TimeFormat-4 412ns ± 3% 412ns ± 6% ~ (p=0.841 n=30+30) [Geo mean] 66.7µs 66.8µs +0.13% name old speed new speed delta GobDecode-4 107MB/s ± 5% 106MB/s ± 5% ~ (p=0.615 n=30+30) GobEncode-4 111MB/s ± 6% 111MB/s ± 6% ~ (p=0.790 n=30+30) Gzip-4 48.8MB/s ± 6% 48.7MB/s ± 4% ~ (p=0.167 n=30+30) Gunzip-4 465MB/s ± 3% 465MB/s ± 3% ~ (p=0.420 n=30+30) JSONEncode-4 92.4MB/s ± 4% 93.7MB/s ± 5% +1.42% (p=0.015 n=30+30) JSONDecode-4 29.3MB/s ± 3% 28.8MB/s ± 1% -1.72% (p=0.003 n=30+24) GoParse-4 17.9MB/s ± 3% 17.7MB/s ± 4% -0.89% (p=0.037 n=30+30) RegexpMatchEasy0_32-4 317MB/s ± 8% 324MB/s ± 4% +2.14% (p=0.006 n=30+30) RegexpMatchEasy0_1K-4 1.21GB/s ± 4% 1.22GB/s ± 2% +0.77% (p=0.036 n=30+30) RegexpMatchEasy1_32-4 298MB/s ± 7% 299MB/s ± 4% ~ (p=0.511 n=30+30) RegexpMatchEasy1_1K-4 1.00GB/s ± 3% 1.00GB/s ± 4% ~ (p=0.304 n=28+30) RegexpMatchMedium_32-4 7.75MB/s ± 4% 7.82MB/s ± 4% ~ (p=0.089 n=30+30) RegexpMatchMedium_1K-4 23.3MB/s ± 3% 23.4MB/s ± 3% ~ (p=0.181 n=30+30) RegexpMatchHard_32-4 14.3MB/s ± 4% 14.4MB/s ± 4% ~ (p=0.320 n=30+29) RegexpMatchHard_1K-4 15.1MB/s ± 4% 15.2MB/s ± 3% ~ (p=0.273 n=30+30) Revcomp-4 137MB/s ± 3% 137MB/s ± 3% ~ (p=0.352 n=30+30) Template-4 27.9MB/s ± 3% 27.7MB/s ± 4% ~ (p=0.277 n=30+30) [Geo mean] 79.9MB/s 80.1MB/s +0.15% Change-Id: I97333cd8ddabb3c7c88ca5aa9e14a005b74d306d Reviewed-on: https://go-review.googlesource.com/120695 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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Ben Shi
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705f3c74e6 |
cmd/compile: optimize AMD64 with DIVSSload and DIVSDload
DIVSSload & DIVSDload directly operate on a memory operand. And binary size can be reduced by them, while the performance is not affected. The total size of pkg/linux_amd64 (excluding cmd/compile) decreases about 6KB. There is little regression in the go1 benchmark test (excluding noise). name old time/op new time/op delta BinaryTree17-4 2.63s ± 4% 2.62s ± 4% ~ (p=0.809 n=30+30) Fannkuch11-4 2.40s ± 2% 2.40s ± 2% ~ (p=0.109 n=30+30) FmtFprintfEmpty-4 43.1ns ± 4% 43.2ns ± 9% ~ (p=0.168 n=30+30) FmtFprintfString-4 73.6ns ± 4% 74.1ns ± 4% ~ (p=0.069 n=30+30) FmtFprintfInt-4 81.0ns ± 3% 81.4ns ± 5% ~ (p=0.350 n=30+30) FmtFprintfIntInt-4 127ns ± 4% 129ns ± 4% +0.99% (p=0.021 n=30+30) FmtFprintfPrefixedInt-4 156ns ± 4% 155ns ± 4% ~ (p=0.415 n=30+30) FmtFprintfFloat-4 219ns ± 4% 218ns ± 4% ~ (p=0.071 n=30+30) FmtManyArgs-4 522ns ± 3% 518ns ± 3% -0.68% (p=0.034 n=30+30) GobDecode-4 6.49ms ± 6% 6.52ms ± 6% ~ (p=0.832 n=30+30) GobEncode-4 6.10ms ± 9% 6.14ms ± 7% ~ (p=0.485 n=30+30) Gzip-4 227ms ± 1% 224ms ± 4% ~ (p=0.484 n=24+30) Gunzip-4 37.2ms ± 3% 36.8ms ± 4% ~ (p=0.889 n=30+30) HTTPClientServer-4 58.9µs ± 1% 58.7µs ± 2% -0.42% (p=0.003 n=28+28) JSONEncode-4 12.0ms ± 3% 12.0ms ± 4% ~ (p=0.523 n=30+30) JSONDecode-4 54.6ms ± 4% 54.5ms ± 4% ~ (p=0.708 n=30+30) Mandelbrot200-4 3.78ms ± 4% 3.81ms ± 3% +0.99% (p=0.016 n=30+30) GoParse-4 3.20ms ± 4% 3.20ms ± 5% ~ (p=0.994 n=30+30) RegexpMatchEasy0_32-4 77.0ns ± 4% 75.9ns ± 3% -1.39% (p=0.006 n=29+30) RegexpMatchEasy0_1K-4 255ns ± 4% 253ns ± 4% ~ (p=0.091 n=30+30) RegexpMatchEasy1_32-4 69.7ns ± 3% 70.3ns ± 4% ~ (p=0.120 n=30+30) RegexpMatchEasy1_1K-4 373ns ± 2% 378ns ± 3% +1.43% (p=0.000 n=21+26) RegexpMatchMedium_32-4 107ns ± 2% 108ns ± 4% +1.50% (p=0.012 n=22+30) RegexpMatchMedium_1K-4 34.0µs ± 1% 34.3µs ± 3% +1.08% (p=0.008 n=24+30) RegexpMatchHard_32-4 1.53µs ± 3% 1.54µs ± 3% ~ (p=0.234 n=30+30) RegexpMatchHard_1K-4 46.7µs ± 4% 47.0µs ± 4% ~ (p=0.420 n=30+30) Revcomp-4 411ms ± 7% 415ms ± 6% ~ (p=0.059 n=30+30) Template-4 65.5ms ± 5% 66.9ms ± 4% +2.21% (p=0.001 n=30+30) TimeParse-4 317ns ± 3% 311ns ± 3% -1.97% (p=0.000 n=30+30) TimeFormat-4 293ns ± 3% 294ns ± 3% ~ (p=0.243 n=30+30) [Geo mean] 47.4µs 47.5µs +0.17% name old speed new speed delta GobDecode-4 118MB/s ± 5% 118MB/s ± 6% ~ (p=0.832 n=30+30) GobEncode-4 125MB/s ± 7% 125MB/s ± 7% ~ (p=0.625 n=29+30) Gzip-4 85.3MB/s ± 1% 86.6MB/s ± 4% ~ (p=0.486 n=24+30) Gunzip-4 522MB/s ± 3% 527MB/s ± 4% ~ (p=0.889 n=30+30) JSONEncode-4 162MB/s ± 3% 162MB/s ± 4% ~ (p=0.520 n=30+30) JSONDecode-4 35.5MB/s ± 4% 35.6MB/s ± 4% ~ (p=0.701 n=30+30) GoParse-4 18.1MB/s ± 4% 18.1MB/s ± 4% ~ (p=0.891 n=29+30) RegexpMatchEasy0_32-4 416MB/s ± 4% 422MB/s ± 3% +1.43% (p=0.005 n=29+30) RegexpMatchEasy0_1K-4 4.01GB/s ± 4% 4.04GB/s ± 4% ~ (p=0.091 n=30+30) RegexpMatchEasy1_32-4 460MB/s ± 3% 456MB/s ± 5% ~ (p=0.123 n=30+30) RegexpMatchEasy1_1K-4 2.74GB/s ± 2% 2.70GB/s ± 3% -1.33% (p=0.000 n=22+26) RegexpMatchMedium_32-4 9.39MB/s ± 3% 9.19MB/s ± 4% -2.06% (p=0.001 n=28+30) RegexpMatchMedium_1K-4 30.1MB/s ± 1% 29.8MB/s ± 3% -1.04% (p=0.008 n=24+30) RegexpMatchHard_32-4 20.9MB/s ± 3% 20.8MB/s ± 3% ~ (p=0.234 n=30+30) RegexpMatchHard_1K-4 21.9MB/s ± 4% 21.8MB/s ± 4% ~ (p=0.420 n=30+30) Revcomp-4 619MB/s ± 7% 612MB/s ± 7% ~ (p=0.059 n=30+30) Template-4 29.6MB/s ± 4% 29.0MB/s ± 4% -2.16% (p=0.002 n=30+30) [Geo mean] 123MB/s 123MB/s -0.33% Change-Id: Ia59e077feae4f2824df79059daea4d0f678e3e4c Reviewed-on: https://go-review.googlesource.com/120275 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ilya Tocar <ilya.tocar@intel.com> |
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Ian Lance Taylor
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7e64377903 |
cmd/compile: only support -race and -msan where they work
Consolidate decision about whether -race and -msan options are supported in cmd/internal/sys. Use consolidated functions in cmd/compile and cmd/go. Use a copy of them in cmd/dist; cmd/dist can't import cmd/internal/sys because Go 1.4 doesn't have it. Fixes #24315 Change-Id: I9cecaed4895eb1a2a49379b4848db40de66d32a9 Reviewed-on: https://go-review.googlesource.com/121816 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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Ilya Tocar
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a3593685cf |
cmd/compile/internal/ssa: remove useless zero extension
We generate MOVBLZX for byte-sized LoadReg, so (MOVBQZX (LoadReg (Arg))) is the same as (LoadReg (Arg)). Remove those zero extension where possible. Triggers several times during all.bash. Fixes #25378 Updates #15300 Change-Id: If50656e66f217832a13ee8f49c47997f4fcc093a Reviewed-on: https://go-review.googlesource.com/115617 Run-TryBot: Ilya Tocar <ilya.tocar@intel.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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Ilya Tocar
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c292b32f33 |
cmd/compile: enable disjoint memmove inlining on amd64
Memmove can use AVX/prefetches/other optional instructions, so only do it for small sizes, when call overhead dominates. Change-Id: Ice5e93deb11462217f7fb5fc350b703109bb4090 Reviewed-on: https://go-review.googlesource.com/112517 Run-TryBot: Ilya Tocar <ilya.tocar@intel.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Michael Munday <mike.munday@ibm.com> |
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Ben Shi
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0a382e0b7f |
cmd/compile: optimize ARMv7 code
"AND $0xffff0000, Rx" will be encoded to 12 bytes. 1. MOVWload from the constant pool to Rtmp 2. AND Rtmp, Rx 3. a 4-byte item in the constant pool It can be simplified to 8 bytes on ARMv7, since ARMv7 has "MOVW $imm-16, Rx". 1. MOVW $0xffff, Rtmp 2. BIC Rtmp, Rx The above optimization also applies to BICconst, ADDconst and SUBconst. 1. The total size of pkg/android_arm (excluding cmd/compile) decreases about 2KB. 2. The go1 benchmark shows no regression, exlcuding noise. name old time/op new time/op delta BinaryTree17-4 25.5s ± 1% 25.2s ± 1% -0.85% (p=0.000 n=30+30) Fannkuch11-4 13.3s ± 0% 13.3s ± 0% +0.16% (p=0.000 n=24+25) FmtFprintfEmpty-4 397ns ± 0% 394ns ± 0% -0.64% (p=0.000 n=30+30) FmtFprintfString-4 679ns ± 0% 678ns ± 0% ~ (p=0.093 n=30+29) FmtFprintfInt-4 708ns ± 0% 707ns ± 0% -0.19% (p=0.000 n=27+28) FmtFprintfIntInt-4 1.05µs ± 0% 1.05µs ± 0% -0.07% (p=0.001 n=18+30) FmtFprintfPrefixedInt-4 1.16µs ± 0% 1.15µs ± 0% -0.41% (p=0.000 n=29+30) FmtFprintfFloat-4 2.26µs ± 0% 2.23µs ± 1% -1.40% (p=0.000 n=30+30) FmtManyArgs-4 3.96µs ± 0% 3.95µs ± 0% -0.29% (p=0.000 n=29+30) GobDecode-4 52.9ms ± 2% 53.4ms ± 2% +0.92% (p=0.004 n=28+30) GobEncode-4 49.7ms ± 2% 49.8ms ± 2% ~ (p=0.890 n=30+26) Gzip-4 2.61s ± 0% 2.60s ± 0% -0.36% (p=0.000 n=29+29) Gunzip-4 312ms ± 0% 311ms ± 0% -0.13% (p=0.000 n=30+28) HTTPClientServer-4 1.02ms ± 8% 1.00ms ± 7% ~ (p=0.224 n=29+26) JSONEncode-4 125ms ± 1% 124ms ± 3% -1.05% (p=0.000 n=25+30) JSONDecode-4 432ms ± 1% 436ms ± 2% ~ (p=0.277 n=26+30) Mandelbrot200-4 18.4ms ± 0% 18.4ms ± 0% +0.02% (p=0.001 n=28+25) GoParse-4 22.4ms ± 1% 22.3ms ± 1% -0.41% (p=0.000 n=28+28) RegexpMatchEasy0_32-4 697ns ± 0% 706ns ± 0% +1.23% (p=0.000 n=19+30) RegexpMatchEasy0_1K-4 4.27µs ± 0% 4.26µs ± 0% -0.06% (p=0.000 n=30+30) RegexpMatchEasy1_32-4 741ns ± 0% 735ns ± 0% -0.86% (p=0.000 n=26+30) RegexpMatchEasy1_1K-4 5.49µs ± 0% 5.49µs ± 0% -0.03% (p=0.023 n=25+30) RegexpMatchMedium_32-4 1.05µs ± 2% 1.04µs ± 2% ~ (p=0.893 n=30+30) RegexpMatchMedium_1K-4 261µs ± 0% 261µs ± 0% -0.11% (p=0.000 n=29+30) RegexpMatchHard_32-4 14.9µs ± 0% 14.9µs ± 0% -0.36% (p=0.000 n=23+29) RegexpMatchHard_1K-4 446µs ± 0% 445µs ± 0% -0.17% (p=0.000 n=30+29) Revcomp-4 41.6ms ± 1% 41.7ms ± 1% +0.27% (p=0.040 n=28+30) Template-4 531ms ± 0% 532ms ± 1% ~ (p=0.059 n=30+30) TimeParse-4 3.40µs ± 0% 3.33µs ± 0% -2.02% (p=0.000 n=30+30) TimeFormat-4 6.14µs ± 0% 6.11µs ± 0% -0.45% (p=0.000 n=27+29) [Geo mean] 384µs 383µs -0.27% name old speed new speed delta GobDecode-4 14.5MB/s ± 2% 14.4MB/s ± 2% -0.90% (p=0.005 n=28+30) GobEncode-4 15.4MB/s ± 2% 15.4MB/s ± 2% ~ (p=0.741 n=30+25) Gzip-4 7.44MB/s ± 0% 7.47MB/s ± 1% +0.37% (p=0.000 n=25+30) Gunzip-4 62.3MB/s ± 0% 62.4MB/s ± 0% +0.13% (p=0.000 n=30+28) JSONEncode-4 15.5MB/s ± 1% 15.6MB/s ± 3% +1.07% (p=0.000 n=25+30) JSONDecode-4 4.48MB/s ± 0% 4.46MB/s ± 2% ~ (p=0.655 n=23+30) GoParse-4 2.58MB/s ± 1% 2.59MB/s ± 1% +0.42% (p=0.000 n=28+29) RegexpMatchEasy0_32-4 45.9MB/s ± 0% 45.3MB/s ± 0% -1.23% (p=0.000 n=28+30) RegexpMatchEasy0_1K-4 240MB/s ± 0% 240MB/s ± 0% +0.07% (p=0.000 n=30+30) RegexpMatchEasy1_32-4 43.2MB/s ± 0% 43.5MB/s ± 0% +0.85% (p=0.000 n=30+28) RegexpMatchEasy1_1K-4 186MB/s ± 0% 186MB/s ± 0% +0.03% (p=0.026 n=25+30) RegexpMatchMedium_32-4 955kB/s ± 2% 960kB/s ± 2% ~ (p=0.084 n=30+30) RegexpMatchMedium_1K-4 3.92MB/s ± 0% 3.93MB/s ± 0% +0.14% (p=0.000 n=29+30) RegexpMatchHard_32-4 2.14MB/s ± 0% 2.15MB/s ± 0% +0.31% (p=0.000 n=30+26) RegexpMatchHard_1K-4 2.30MB/s ± 0% 2.30MB/s ± 0% ~ (all equal) Revcomp-4 61.1MB/s ± 1% 60.9MB/s ± 1% -0.27% (p=0.039 n=28+30) Template-4 3.66MB/s ± 0% 3.65MB/s ± 1% -0.14% (p=0.045 n=30+30) [Geo mean] 12.8MB/s 12.8MB/s +0.04% Change-Id: I02370e2584b4c041fddd324c97628fd6f0c12183 Reviewed-on: https://go-review.googlesource.com/123179 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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Ben Shi
|
556971316f |
cmd/compile: optimize 386's comparison
CMPL/CMPW/CMPB can take a memory operand on 386, and this CL implements that optimization. 1. The total size of pkg/linux_386 decreases about 45KB, excluding cmd/compile. 2. The go1 benchmark shows a little improvement. name old time/op new time/op delta BinaryTree17-4 3.36s ± 2% 3.37s ± 3% ~ (p=0.537 n=40+40) Fannkuch11-4 3.59s ± 1% 3.53s ± 2% -1.58% (p=0.000 n=40+40) FmtFprintfEmpty-4 46.0ns ± 3% 45.8ns ± 3% ~ (p=0.249 n=40+40) FmtFprintfString-4 80.0ns ± 4% 78.8ns ± 3% -1.49% (p=0.001 n=40+40) FmtFprintfInt-4 89.7ns ± 2% 90.3ns ± 2% +0.74% (p=0.003 n=40+40) FmtFprintfIntInt-4 144ns ± 3% 143ns ± 3% -0.95% (p=0.003 n=40+40) FmtFprintfPrefixedInt-4 181ns ± 4% 180ns ± 2% ~ (p=0.103 n=40+40) FmtFprintfFloat-4 412ns ± 3% 408ns ± 4% -0.97% (p=0.018 n=40+40) FmtManyArgs-4 607ns ± 4% 605ns ± 4% ~ (p=0.148 n=40+40) GobDecode-4 7.19ms ± 4% 7.24ms ± 5% ~ (p=0.340 n=40+40) GobEncode-4 7.04ms ± 9% 6.99ms ± 9% ~ (p=0.289 n=40+40) Gzip-4 400ms ± 6% 398ms ± 5% ~ (p=0.168 n=40+40) Gunzip-4 41.2ms ± 3% 41.7ms ± 3% +1.40% (p=0.001 n=40+40) HTTPClientServer-4 62.5µs ± 1% 62.1µs ± 2% -0.61% (p=0.000 n=37+37) JSONEncode-4 20.7ms ± 4% 20.4ms ± 3% -1.60% (p=0.000 n=40+40) JSONDecode-4 69.4ms ± 4% 69.2ms ± 6% ~ (p=0.177 n=40+40) Mandelbrot200-4 5.22ms ± 6% 5.21ms ± 3% ~ (p=0.531 n=40+40) GoParse-4 3.29ms ± 3% 3.28ms ± 3% ~ (p=0.321 n=40+39) RegexpMatchEasy0_32-4 104ns ± 4% 103ns ± 7% -0.89% (p=0.040 n=40+40) RegexpMatchEasy0_1K-4 852ns ± 3% 853ns ± 2% ~ (p=0.357 n=40+40) RegexpMatchEasy1_32-4 113ns ± 8% 113ns ± 3% ~ (p=0.906 n=40+40) RegexpMatchEasy1_1K-4 1.03µs ± 4% 1.03µs ± 5% ~ (p=0.326 n=40+40) RegexpMatchMedium_32-4 136ns ± 3% 133ns ± 3% -2.31% (p=0.000 n=40+40) RegexpMatchMedium_1K-4 44.0µs ± 3% 43.7µs ± 3% ~ (p=0.053 n=40+40) RegexpMatchHard_32-4 2.27µs ± 3% 2.26µs ± 4% ~ (p=0.391 n=40+40) RegexpMatchHard_1K-4 68.0µs ± 3% 68.9µs ± 3% +1.28% (p=0.000 n=40+40) Revcomp-4 1.86s ± 5% 1.86s ± 2% ~ (p=0.950 n=40+40) Template-4 73.4ms ± 4% 69.9ms ± 7% -4.78% (p=0.000 n=40+40) TimeParse-4 449ns ± 4% 441ns ± 5% -1.76% (p=0.000 n=40+40) TimeFormat-4 416ns ± 3% 417ns ± 4% ~ (p=0.304 n=40+40) [Geo mean] 67.7µs 67.3µs -0.55% name old speed new speed delta GobDecode-4 107MB/s ± 4% 106MB/s ± 5% ~ (p=0.336 n=40+40) GobEncode-4 109MB/s ± 5% 110MB/s ± 9% ~ (p=0.142 n=38+40) Gzip-4 48.5MB/s ± 5% 48.8MB/s ± 5% ~ (p=0.172 n=40+40) Gunzip-4 472MB/s ± 3% 465MB/s ± 3% -1.39% (p=0.001 n=40+40) JSONEncode-4 93.6MB/s ± 4% 95.1MB/s ± 3% +1.61% (p=0.000 n=40+40) JSONDecode-4 28.0MB/s ± 3% 28.1MB/s ± 6% ~ (p=0.181 n=40+40) GoParse-4 17.6MB/s ± 3% 17.7MB/s ± 3% ~ (p=0.350 n=40+39) RegexpMatchEasy0_32-4 308MB/s ± 4% 311MB/s ± 6% +0.96% (p=0.025 n=40+40) RegexpMatchEasy0_1K-4 1.20GB/s ± 3% 1.20GB/s ± 2% ~ (p=0.317 n=40+40) RegexpMatchEasy1_32-4 282MB/s ± 7% 282MB/s ± 3% ~ (p=0.516 n=40+40) RegexpMatchEasy1_1K-4 994MB/s ± 4% 991MB/s ± 5% ~ (p=0.319 n=40+40) RegexpMatchMedium_32-4 7.31MB/s ± 3% 7.49MB/s ± 3% +2.46% (p=0.000 n=40+40) RegexpMatchMedium_1K-4 23.3MB/s ± 3% 23.4MB/s ± 3% ~ (p=0.052 n=40+40) RegexpMatchHard_32-4 14.1MB/s ± 3% 14.1MB/s ± 4% ~ (p=0.391 n=40+40) RegexpMatchHard_1K-4 15.1MB/s ± 3% 14.9MB/s ± 3% -1.27% (p=0.000 n=40+40) Revcomp-4 137MB/s ± 5% 137MB/s ± 2% ~ (p=0.942 n=40+40) Template-4 26.5MB/s ± 4% 27.8MB/s ± 7% +5.03% (p=0.000 n=40+40) [Geo mean] 78.6MB/s 79.0MB/s +0.57% Change-Id: Idcacc6881ef57cd7dc33aa87b711282842b72a53 Reviewed-on: https://go-review.googlesource.com/126618 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org> |
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Ben Shi
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b75c5c5992 |
cmd/compile: optimize AMD64 with more read-modify-write operations
6 more operations which do read-modify-write with a constant source operand are added. 1. The total size of pkg/linux_amd64 decreases about 3KB, excluding cmd/compile. 2. The go1 benckmark shows a slight improvement. name old time/op new time/op delta BinaryTree17-4 2.61s ± 4% 2.67s ± 2% +2.26% (p=0.000 n=30+29) Fannkuch11-4 2.39s ± 2% 2.32s ± 2% -2.67% (p=0.000 n=30+30) FmtFprintfEmpty-4 44.0ns ± 4% 41.7ns ± 4% -5.15% (p=0.000 n=30+30) FmtFprintfString-4 74.2ns ± 4% 72.3ns ± 4% -2.59% (p=0.000 n=30+30) FmtFprintfInt-4 81.7ns ± 3% 78.8ns ± 4% -3.54% (p=0.000 n=27+30) FmtFprintfIntInt-4 130ns ± 4% 124ns ± 5% -4.60% (p=0.000 n=30+30) FmtFprintfPrefixedInt-4 154ns ± 3% 152ns ± 3% -1.13% (p=0.012 n=30+30) FmtFprintfFloat-4 215ns ± 4% 212ns ± 5% -1.56% (p=0.002 n=30+30) FmtManyArgs-4 522ns ± 3% 512ns ± 3% -1.84% (p=0.001 n=30+30) GobDecode-4 6.42ms ± 5% 6.49ms ± 7% ~ (p=0.070 n=30+30) GobEncode-4 6.07ms ± 8% 5.98ms ± 8% ~ (p=0.150 n=30+30) Gzip-4 236ms ± 4% 223ms ± 4% -5.57% (p=0.000 n=30+30) Gunzip-4 37.4ms ± 3% 36.7ms ± 4% -2.03% (p=0.000 n=30+30) HTTPClientServer-4 58.7µs ± 1% 58.5µs ± 2% -0.37% (p=0.018 n=30+29) JSONEncode-4 12.0ms ± 4% 12.1ms ± 3% ~ (p=0.112 n=30+30) JSONDecode-4 54.5ms ± 3% 55.5ms ± 4% +1.80% (p=0.006 n=30+30) Mandelbrot200-4 3.78ms ± 4% 3.78ms ± 4% ~ (p=0.173 n=30+30) GoParse-4 3.16ms ± 5% 3.22ms ± 5% +1.75% (p=0.010 n=30+30) RegexpMatchEasy0_32-4 76.6ns ± 1% 75.9ns ± 3% ~ (p=0.672 n=25+30) RegexpMatchEasy0_1K-4 252ns ± 3% 253ns ± 3% +0.57% (p=0.027 n=30+30) RegexpMatchEasy1_32-4 69.8ns ± 4% 70.2ns ± 6% ~ (p=0.539 n=30+30) RegexpMatchEasy1_1K-4 374ns ± 3% 373ns ± 5% ~ (p=0.263 n=30+30) RegexpMatchMedium_32-4 107ns ± 4% 109ns ± 3% ~ (p=0.067 n=30+30) RegexpMatchMedium_1K-4 33.9µs ± 5% 34.1µs ± 4% ~ (p=0.297 n=30+30) RegexpMatchHard_32-4 1.54µs ± 3% 1.56µs ± 4% +1.43% (p=0.002 n=30+30) RegexpMatchHard_1K-4 46.6µs ± 3% 47.0µs ± 3% ~ (p=0.055 n=30+30) Revcomp-4 411ms ± 6% 407ms ± 6% ~ (p=0.219 n=30+30) Template-4 66.8ms ± 3% 64.8ms ± 5% -3.01% (p=0.000 n=30+30) TimeParse-4 312ns ± 2% 319ns ± 3% +2.50% (p=0.000 n=30+30) TimeFormat-4 296ns ± 5% 299ns ± 3% +0.93% (p=0.005 n=30+30) [Geo mean] 47.5µs 47.1µs -0.75% name old speed new speed delta GobDecode-4 120MB/s ± 5% 118MB/s ± 6% ~ (p=0.072 n=30+30) GobEncode-4 127MB/s ± 8% 129MB/s ± 8% ~ (p=0.150 n=30+30) Gzip-4 82.1MB/s ± 4% 87.0MB/s ± 4% +5.90% (p=0.000 n=30+30) Gunzip-4 519MB/s ± 4% 529MB/s ± 4% +2.07% (p=0.001 n=30+30) JSONEncode-4 162MB/s ± 4% 161MB/s ± 3% ~ (p=0.110 n=30+30) JSONDecode-4 35.6MB/s ± 3% 35.0MB/s ± 4% -1.77% (p=0.007 n=30+30) GoParse-4 18.3MB/s ± 4% 18.0MB/s ± 4% -1.72% (p=0.009 n=30+30) RegexpMatchEasy0_32-4 418MB/s ± 1% 422MB/s ± 3% ~ (p=0.645 n=25+30) RegexpMatchEasy0_1K-4 4.06GB/s ± 3% 4.04GB/s ± 3% -0.57% (p=0.033 n=30+30) RegexpMatchEasy1_32-4 459MB/s ± 4% 456MB/s ± 6% ~ (p=0.530 n=30+30) RegexpMatchEasy1_1K-4 2.73GB/s ± 3% 2.75GB/s ± 5% ~ (p=0.279 n=30+30) RegexpMatchMedium_32-4 9.28MB/s ± 5% 9.18MB/s ± 4% ~ (p=0.086 n=30+30) RegexpMatchMedium_1K-4 30.2MB/s ± 4% 30.0MB/s ± 4% ~ (p=0.300 n=30+30) RegexpMatchHard_32-4 20.8MB/s ± 3% 20.5MB/s ± 4% -1.41% (p=0.002 n=30+30) RegexpMatchHard_1K-4 22.0MB/s ± 3% 21.8MB/s ± 3% ~ (p=0.051 n=30+30) Revcomp-4 619MB/s ± 7% 625MB/s ± 7% ~ (p=0.219 n=30+30) Template-4 29.0MB/s ± 3% 29.9MB/s ± 4% +3.11% (p=0.000 n=30+30) [Geo mean] 123MB/s 123MB/s +0.28% Change-Id: I850652cfd53329c1af804b7f57f4393d8097bb0d Reviewed-on: https://go-review.googlesource.com/121135 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ilya Tocar <ilya.tocar@intel.com> |
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Richard Musiol
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81555cb4f3 |
cmd/compile/internal/gc: add nil check for closure call on wasm
This commit adds an explicit nil check for closure calls on wasm, so calling a nil func causes a proper panic instead of crashing on the WebAssembly level. Change-Id: I6246844f316677976cdd420618be5664444c25ae Reviewed-on: https://go-review.googlesource.com/127759 Run-TryBot: Richard Musiol <neelance@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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Ben Shi
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de0e72610b |
test/codegen: add more combined store tests for arm64
Some combined store optimization was already implemented in go-1.11, but there is no corresponding test cases. Change-Id: Iebdad186e92047942e53a74f2c20b390922e1e9c Reviewed-on: https://go-review.googlesource.com/122915 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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Keith Randall
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5fc70b6fac |
cmd/compile: set stricter inlining threshold in large functions
If we're compiling a large function, be more picky about how big the function we're inlining is. If the function is >5000 nodes, we lower the inlining threshold from a cost of 80 to 20. Turns out reflect.Value's cost is exactly 80. That's the function at issue in #26546. 20 was chosen as a proxy for "inlined body is smaller than the call would be". Simple functions still get inlined, like this one at cost 7: func ifaceIndir(t *rtype) bool { return t.kind&kindDirectIface == 0 } 5000 nodes was chosen as the big function size. Here are all the 5000+ node (~~1000+ lines) functions in the stdlib: 5187 cmd/internal/obj/arm (*ctxt5).asmout 6879 cmd/internal/obj/s390x (*ctxtz).asmout 6567 cmd/internal/obj/ppc64 (*ctxt9).asmout 9643 cmd/internal/obj/arm64 (*ctxt7).asmout 5042 cmd/internal/obj/x86 (*AsmBuf).doasm 8768 cmd/compile/internal/ssa rewriteBlockAMD64 8878 cmd/compile/internal/ssa rewriteBlockARM 8344 cmd/compile/internal/ssa rewriteValueARM64_OpARM64OR_20 7916 cmd/compile/internal/ssa rewriteValueARM64_OpARM64OR_30 5427 cmd/compile/internal/ssa rewriteBlockARM64 5126 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_50 6152 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_60 6412 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_70 6486 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_80 6534 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_90 6534 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_100 6534 cmd/compile/internal/ssa rewriteValuePPC64_OpPPC64OR_110 6675 cmd/compile/internal/gc typecheck1 5433 cmd/compile/internal/gc walkexpr 14070 cmd/vendor/golang.org/x/arch/arm64/arm64asm decodeArg There are a lot more smaller (~1000 node) functions in the stdlib. The function in #26546 has 12477 nodes. At some point it might be nice to have a better heuristic for "inlined body is smaller than the call", a non-cliff way to scale down the cost as the function gets bigger, doing cheaper inlined calls first, etc. All that can wait for another release. I'd like to do this CL for 1.11. Fixes #26546 Update #17566 Change-Id: Idda13020e46ec2b28d79a17217f44b189f8139ac Reviewed-on: https://go-review.googlesource.com/125516 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com> |
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Cherry Zhang
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48c79734ff |
test: add test for gccgo bug #26495
Gccgo produced incorrect order of evaluation for expressions involving &&, || subexpressions. The fix is CL 125299. Updates #26495. Change-Id: I18d873281709f3160b3e09f0b2e46f5c120e1cab Reviewed-on: https://go-review.googlesource.com/125301 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org> |
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Keith Randall
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59d0baeb33 |
cmd/compile: add test for OPmodify ops clobbering flags
Code fix was in CL 122556. This is a corresponding test case. Fixes #26426 Change-Id: Ib8769f367aed8bead029da0a8d2ddccee1d1dccb Reviewed-on: https://go-review.googlesource.com/124535 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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Daniel Martí
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ba6974fdc3 |
cmd/compile: fix crash on invalid struct literal
If one tries to use promoted fields in a struct literal, the compiler errors correctly. However, if the embedded fields are of struct pointer type, the field.Type.Sym.Name expression below panics. This is because field.Type.Sym is nil in that case. We can simply use field.Sym.Name in this piece of code though, as it only concerns embedded fields, in which case what we are after is the field name. Added a test mirroring fixedbugs/issue23609.go, but with pointer types. Fixes #26416. Change-Id: Ia46ce62995c9e1653f315accb99d592aff2f285e Reviewed-on: https://go-review.googlesource.com/124395 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com> Reviewed-by: Matthew Dempsky <mdempsky@google.com> |
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Ben Shi
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f6ce1e2aa5 |
cmd/compile: fix an arm64's comparison bug
The arm64 backend generates "TST" for "if uint32(a)&uint32(b) == 0", which should be "TSTW". fixes #26438 Change-Id: I7d64c30e3a840b43486bcd10eea2e3e75aaa4857 Reviewed-on: https://go-review.googlesource.com/124637 Run-TryBot: Ben Shi <powerman1st@163.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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Michael Munday
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1546ab5a39 |
cmd/compile: keep autos if their address reaches a control value
Autos must be kept if their address reaches the control value of a block. We didn't see this before because it is rare for an auto's address to reach a control value without also reaching a phi or being written to memory. We can probably optimize away the comparisons that lead to this scenario since autos cannot alias with pointers from elsewhere, however for now we take the conservative approach and just ensure the auto is properly initialised if its address reaches a control value. Fixes #26407. Change-Id: I02265793f010a9e001c3e1a5397c290c6769d4de Reviewed-on: https://go-review.googlesource.com/124335 Reviewed-by: David Chase <drchase@google.com> |
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Keith Randall
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85cfa4d55e |
cmd/compile: handle degenerate write barrier case
If both branches of a write barrier test go to the same block, then there's no unsafe points. This can only happen if the resulting memory state is somehow dead, which can only occur in degenerate cases, like infinite loops. No point in cleaning up the useless branch in these situations. Fixes #26024. Change-Id: I93a7df9fdf2fc94c6c4b1fe61180dc4fd4a0871f Reviewed-on: https://go-review.googlesource.com/123655 Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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David Chase
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0029cd479e |
cmd/compile: add LocalAddr that takes SP,mem operands
Lack of a well-defined order between VarDef and related address operations sometimes causes problems with store order and write barrier transformations; glitches in the order are made irreparable (by later optimizations) if the two parts of the glitch straddle a split in the original block caused by insertion of a write barrier diamond. Fix this by creating a LocalAddr for addresses of locals (what VarDef matters for) that takes a memory input to help make the order explicit. Addr is modified to only be legal for SB operand, so there is no overlap between Addr and LocalAddr uses (there may be some downstream cleanup from this). Changes to generic.rules and rewrite.go ensure that codegen tests continue to pass; CSE of LocalAddr is impaired, not quite sure of the cost. Fixes #26105. Change-Id: Id4192b4440aa4e9d7ba54a465c456df9b530b515 Reviewed-on: https://go-review.googlesource.com/122483 Run-TryBot: David Chase <drchase@google.com> Reviewed-by: Keith Randall <khr@golang.org> |
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Ian Lance Taylor
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964c15f360 |
test: add test of valid code that gccgo failed to compile
Updates #26340 Change-Id: I3bc7cd544ea77df660bbda7de99a009b63d5be1b Reviewed-on: https://go-review.googlesource.com/123477 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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Matthew Dempsky
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cc422e64d0 |
cmd/compile: fix ICE due to missing inline function body
For golang.org/cl/74110, I forgot that you can use range-based for loops to extract key values from a map value. This wasn't a problem for the binary format importer, because it was more tolerant about missing inline function bodies. However, the indexed importer is more particular about this. We could potentially just make it more lenient like the binary importer, but tweaking the logic here is easy enough and seems like the preferable solution. Fixes #26341. Change-Id: I54564dcd0be60ea393f8a0f6954b7d3d61e96ee5 Reviewed-on: https://go-review.googlesource.com/123475 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Heschi Kreinick <heschi@google.com> |
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Ian Lance Taylor
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cda1947fd1 |
runtime: don't say "different packages" if they may not be different
Fix the panic message produced for an interface conversion error to only say "types from different packages" if they are definitely from different packges. If they may be from the same package, say "types from different scopes." Updates #18911 Fixes #26094 Change-Id: I0cea50ba31007d88e70c067b4680009ede69bab9 Reviewed-on: https://go-review.googlesource.com/123395 Reviewed-by: Austin Clements <austin@google.com> |