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The Go programming language

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Giovanni Bajo f49369b67c cmd/compile: remove loopbce pass prove now is able to do what loopbce used to do. Passes toolstash -cmp. Compilebench of the whole serie (master `9967582f77`): name old time/op new time/op delta Template 208ms ±18% 198ms ± 4% ~ (p=0.690 n=5+5) Unicode 99.1ms ±19% 96.5ms ± 4% ~ (p=0.548 n=5+5) GoTypes 623ms ± 1% 633ms ± 1% ~ (p=0.056 n=5+5) Compiler 2.94s ± 2% 3.02s ± 4% ~ (p=0.095 n=5+5) SSA 6.77s ± 1% 7.11s ± 2% +4.94% (p=0.008 n=5+5) Flate 129ms ± 1% 136ms ± 0% +4.87% (p=0.016 n=5+4) GoParser 152ms ± 3% 156ms ± 1% ~ (p=0.095 n=5+5) Reflect 380ms ± 2% 392ms ± 1% +3.30% (p=0.008 n=5+5) Tar 185ms ± 6% 184ms ± 2% ~ (p=0.690 n=5+5) XML 223ms ± 2% 228ms ± 3% ~ (p=0.095 n=5+5) StdCmd 26.8s ± 2% 28.0s ± 5% +4.46% (p=0.032 n=5+5) name old user-ns/op new user-ns/op delta Template 252M ± 5% 248M ± 3% ~ (p=1.000 n=5+5) Unicode 118M ± 7% 121M ± 4% ~ (p=0.548 n=5+5) GoTypes 790M ± 2% 793M ± 2% ~ (p=0.690 n=5+5) Compiler 3.78G ± 3% 3.91G ± 4% ~ (p=0.056 n=5+5) SSA 8.98G ± 2% 9.52G ± 3% +6.08% (p=0.008 n=5+5) Flate 155M ± 1% 160M ± 0% +3.47% (p=0.016 n=5+4) GoParser 185M ± 4% 187M ± 2% ~ (p=0.310 n=5+5) Reflect 469M ± 1% 481M ± 1% +2.52% (p=0.016 n=5+5) Tar 222M ± 4% 222M ± 2% ~ (p=0.841 n=5+5) XML 269M ± 1% 274M ± 2% +1.88% (p=0.032 n=5+5) name old text-bytes new text-bytes delta HelloSize 664k ± 0% 664k ± 0% ~ (all equal) CmdGoSize 7.23M ± 0% 7.22M ± 0% -0.06% (p=0.008 n=5+5) name old data-bytes new data-bytes delta HelloSize 134k ± 0% 134k ± 0% ~ (all equal) CmdGoSize 390k ± 0% 390k ± 0% ~ (all equal) name old exe-bytes new exe-bytes delta HelloSize 1.39M ± 0% 1.39M ± 0% ~ (all equal) CmdGoSize 14.4M ± 0% 14.4M ± 0% -0.06% (p=0.008 n=5+5) Go1 of the whole serie: name old time/op new time/op delta BinaryTree17-16 5.40s ± 6% 5.38s ± 4% ~ (p=1.000 n=12+10) Fannkuch11-16 4.04s ± 3% 3.81s ± 3% -5.70% (p=0.000 n=11+11) FmtFprintfEmpty-16 60.7ns ± 2% 60.2ns ± 3% ~ (p=0.136 n=11+10) FmtFprintfString-16 115ns ± 2% 114ns ± 4% ~ (p=0.175 n=11+10) FmtFprintfInt-16 118ns ± 2% 125ns ± 2% +5.76% (p=0.000 n=11+10) FmtFprintfIntInt-16 196ns ± 2% 204ns ± 3% +4.42% (p=0.000 n=10+11) FmtFprintfPrefixedInt-16 207ns ± 2% 214ns ± 2% +3.23% (p=0.000 n=10+11) FmtFprintfFloat-16 364ns ± 3% 357ns ± 2% -1.88% (p=0.002 n=11+11) FmtManyArgs-16 773ns ± 2% 775ns ± 1% ~ (p=0.457 n=11+10) GobDecode-16 11.2ms ± 4% 11.0ms ± 3% -1.51% (p=0.022 n=10+9) GobEncode-16 9.91ms ± 6% 9.81ms ± 5% ~ (p=0.699 n=11+11) Gzip-16 339ms ± 1% 338ms ± 1% ~ (p=0.438 n=11+11) Gunzip-16 64.4ms ± 1% 65.2ms ± 1% +1.28% (p=0.001 n=10+11) HTTPClientServer-16 157µs ± 7% 160µs ± 5% ~ (p=0.133 n=11+11) JSONEncode-16 22.3ms ± 4% 23.2ms ± 4% +3.79% (p=0.000 n=11+11) JSONDecode-16 96.7ms ± 3% 96.6ms ± 1% ~ (p=0.562 n=11+11) Mandelbrot200-16 6.42ms ± 1% 6.40ms ± 1% ~ (p=0.365 n=11+11) GoParse-16 5.59ms ± 7% 5.42ms ± 5% -3.07% (p=0.020 n=11+10) RegexpMatchEasy0_32-16 113ns ± 2% 113ns ± 3% ~ (p=0.968 n=11+10) RegexpMatchEasy0_1K-16 417ns ± 1% 416ns ± 3% ~ (p=0.742 n=11+10) RegexpMatchEasy1_32-16 106ns ± 1% 107ns ± 3% ~ (p=0.223 n=11+11) RegexpMatchEasy1_1K-16 654ns ± 2% 657ns ± 1% ~ (p=0.672 n=11+8) RegexpMatchMedium_32-16 176ns ± 3% 177ns ± 1% ~ (p=0.664 n=11+9) RegexpMatchMedium_1K-16 56.3µs ± 3% 56.7µs ± 3% ~ (p=0.171 n=11+11) RegexpMatchHard_32-16 2.83µs ± 5% 2.83µs ± 4% ~ (p=0.735 n=11+11) RegexpMatchHard_1K-16 82.7µs ± 2% 82.7µs ± 2% ~ (p=0.853 n=10+10) Revcomp-16 679ms ± 9% 782ms ±29% +15.16% (p=0.031 n=9+11) Template-16 118ms ± 1% 109ms ± 2% -7.49% (p=0.000 n=11+11) TimeParse-16 474ns ± 1% 462ns ± 1% -2.59% (p=0.000 n=11+11) TimeFormat-16 482ns ± 1% 494ns ± 1% +2.49% (p=0.000 n=10+11) name old speed new speed delta GobDecode-16 68.7MB/s ± 4% 69.8MB/s ± 3% +1.52% (p=0.022 n=10+9) GobEncode-16 77.6MB/s ± 6% 78.3MB/s ± 5% ~ (p=0.699 n=11+11) Gzip-16 57.2MB/s ± 1% 57.3MB/s ± 1% ~ (p=0.428 n=11+11) Gunzip-16 301MB/s ± 2% 298MB/s ± 1% -1.07% (p=0.007 n=11+11) JSONEncode-16 86.9MB/s ± 4% 83.7MB/s ± 4% -3.63% (p=0.000 n=11+11) JSONDecode-16 20.1MB/s ± 3% 20.1MB/s ± 1% ~ (p=0.529 n=11+11) GoParse-16 10.4MB/s ± 6% 10.7MB/s ± 4% +3.12% (p=0.020 n=11+10) RegexpMatchEasy0_32-16 282MB/s ± 2% 282MB/s ± 3% ~ (p=0.756 n=11+10) RegexpMatchEasy0_1K-16 2.45GB/s ± 1% 2.46GB/s ± 2% ~ (p=0.705 n=11+10) RegexpMatchEasy1_32-16 299MB/s ± 1% 297MB/s ± 2% ~ (p=0.151 n=11+11) RegexpMatchEasy1_1K-16 1.56GB/s ± 2% 1.56GB/s ± 1% ~ (p=0.717 n=11+8) RegexpMatchMedium_32-16 5.67MB/s ± 4% 5.63MB/s ± 1% ~ (p=0.538 n=11+9) RegexpMatchMedium_1K-16 18.2MB/s ± 3% 18.1MB/s ± 3% ~ (p=0.156 n=11+11) RegexpMatchHard_32-16 11.3MB/s ± 5% 11.3MB/s ± 4% ~ (p=0.711 n=11+11) RegexpMatchHard_1K-16 12.4MB/s ± 1% 12.4MB/s ± 2% ~ (p=0.535 n=9+10) Revcomp-16 370MB/s ± 5% 332MB/s ±24% ~ (p=0.062 n=8+11) Template-16 16.5MB/s ± 1% 17.8MB/s ± 2% +8.11% (p=0.000 n=11+11) Change-Id: I41e46f375ee127785c6491f7ef5bd35581261ae6 Reviewed-on: https://go-review.googlesource.com/104039 Run-TryBot: Giovanni Bajo <rasky@develer.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>		2018-04-29 09:37:58 +00:00
.github	github: update Pull Request template	2018-02-21 02:07:46 +00:00
api	syscall: introduce Pointer type and use it instead of uintptr	2018-04-18 08:50:42 +00:00
doc	cmd/compile: add softfloat support to mips64{,le}	2018-04-27 14:50:17 +00:00
lib/time	all: use HTTPS for iana.org links	2018-02-13 18:36:48 +00:00
misc	misc/wasm: wasm_exec: non-zero exit code on compile error	2018-04-27 20:57:51 +00:00
src	cmd/compile: remove loopbce pass	2018-04-29 09:37:58 +00:00
test	cmd/compile: implement loop BCE in prove	2018-04-29 09:37:35 +00:00
.gitattributes
.gitignore	.gitignore: ignore src/cmd/dist/dist	2017-10-28 21:55:49 +00:00
AUTHORS	A+C: update email address	2018-04-14 19:28:37 +00:00
CONTRIBUTING.md	all: restore changes from faulty merge/revert	2018-02-12 20:13:59 +00:00
CONTRIBUTORS	C: add Iskander Sharipov's individual CLA mail	2018-04-16 04:49:46 +00:00
favicon.ico	website: recreate 16px and 32px favicon	2016-08-25 15:43:32 +00:00
LICENSE
PATENTS
README.md	README: update number of contributors	2018-04-03 22:10:32 +00:00
robots.txt

README.md

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

Gopher image by Renee French, licensed under Creative Commons 3.0 Attributions license.

Our canonical Git repository is located at https://go.googlesource.com/go. There is a mirror of the repository at https://github.com/golang/go.

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

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Install From Source

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Contributing

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To contribute, please read the contribution guidelines: https://golang.org/doc/contribute.html

Note that the Go project uses the issue tracker for bug reports and proposals only. See https://golang.org/wiki/Questions for a list of places to ask questions about the Go language.