Commits · e83601b4356f92f2f4d05f302d5654754ff05a6d · go / golang

07 Mar, 2018 4 commits

os: use WIN32_FIND_DATA.Reserved0 to identify symlinks · e83601b4

Alex Brainman authored Jan 07, 2018

os.Stat implementation uses instructions described at
https://blogs.msdn.microsoft.com/oldnewthing/20100212-00/?p=14963/
to distinguish symlinks. In particular, it calls
GetFileAttributesEx or FindFirstFile and checks
either WIN32_FILE_ATTRIBUTE_DATA.dwFileAttributes
or WIN32_FIND_DATA.dwFileAttributes to see if
FILE_ATTRIBUTES_REPARSE_POINT flag is set.
And that seems to worked fine so far.

But now we discovered that OneDrive root folder
is determined as directory:

c:\>dir C:\Users\Alex | grep OneDrive
30/11/2017  07:25 PM    <DIR>          OneDrive
c:\>

while Go identified it as symlink.

But we did not follow Microsoft's advice to the letter - we never
checked WIN32_FIND_DATA.Reserved0. And adding that extra check
makes Go treat OneDrive as symlink. So use FindFirstFile and
WIN32_FIND_DATA.Reserved0 to determine symlinks.

Fixes #22579

Change-Id: I0cb88929eb8b47b1d24efaf1907ad5a0e20de83f
Reviewed-on: https://go-review.googlesource.com/86556Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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e83601b4

cmd/compile: remove funcdepth variables · d7eb4901

Matthew Dempsky authored Mar 07, 2018

There were only two large classes of use for these variables:

1) Testing "funcdepth != 0" or "funcdepth > 0", which is equivalent to
checking "Curfn != nil".

2) In oldname, detecting whether a closure variable has been created
for the current function, which can be handled by instead testing
"n.Name.Curfn != Curfn".

Lastly, merge funcstart into funchdr, since it's only called once, and
it better matches up with funcbody now.

Passes toolstash-check.

Change-Id: I8fe159a9d37ef7debc4cd310354cea22a8b23394
Reviewed-on: https://go-review.googlesource.com/99076
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

d7eb4901

cmd/compile: cleanup funccompile and compile · aa00ca12

Matthew Dempsky authored Mar 07, 2018

Bring these functions next to each other, and clean them up a little
bit. Also, change emitptrargsmap to take Curfn as a parameter instead
of a global.

Passes toolstash-check.

Change-Id: Ib9c94fda3b2cb6f0dcec1585622b33b4f311b5e9
Reviewed-on: https://go-review.googlesource.com/99075
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

aa00ca12

cmd/compile: prevent detection of wrong duplicates · b75e8a2a

Kunpei Sakai authored Mar 03, 2018

by including *types.Type in typeVal.

Updates #21866
Fixes #24159

Change-Id: I2f8cac252d88d43e723124f2867b1410b7abab7b
Reviewed-on: https://go-review.googlesource.com/98476
Run-TryBot: Kunpei Sakai <namusyaka@gmail.com>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>

b75e8a2a

06 Mar, 2018 21 commits

cmd/compile: fix miscompilation of "defer delete(m, k)" · 2c0c68d6

Matthew Dempsky authored Mar 06, 2018

Previously, for slow map key types (i.e., any type other than a 32-bit
or 64-bit plain memory type), we would rewrite

    defer delete(m, k)

into

    ktmp := k
    defer delete(m, &ktmp)

However, if the defer statement was inside a loop, we would end up
reusing the same ktmp value for all of the deferred deletes.

We already rewrite

    defer print(x, y, z)

into

    defer func(a1, a2, a3) {
        print(a1, a2, a3)
    }(x, y, z)

This CL generalizes this rewrite to also apply for slow map deletes.

This could be extended to apply even more generally to other builtins,
but as discussed on #24259, there are cases where we must *not* do
this (e.g., "defer recover()"). However, if we elect to do this more
generally, this CL should still make that easier.

Lastly, while here, fix a few isues in wrapCall (nee walkprintfunc):

1) lookupN appends the generation number to the symbol anyway, so "%d"
was being literally included in the generated function names.

2) walkstmt will be called when the function is compiled later anyway,
so no need to do it now.

Fixes #24259.

Change-Id: I70286867c64c69c18e9552f69e3f4154a0fc8b04
Reviewed-on: https://go-review.googlesource.com/99017
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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2c0c68d6

internal/poll: if poller init fails, assume blocking mode · 558769a6

Ian Lance Taylor authored Mar 06, 2018

Fixes #23943

Change-Id: I16e604872f1615963925ec3c4710106bcce1330c
Reviewed-on: https://go-review.googlesource.com/99015
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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558769a6

cmd/compile: improve compiler error on embedded structs · 42ecf39e

ChrisALiles authored Feb 26, 2018

Fixes #23609

Change-Id: I751aae3d849de7fce1306324fcb1a4c3842d873e
Reviewed-on: https://go-review.googlesource.com/97076Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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42ecf39e

test/codegen: port math/bits.ReverseBytes tests to codegen · 8516ecd0

Alberto Donizetti authored Mar 06, 2018

And remove them from ssa_test.

Change-Id: If767af662801219774d1bdb787c77edfa6067770
Reviewed-on: https://go-review.googlesource.com/98976
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
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Reviewed-by: Giovanni Bajo <rasky@develer.com>

8516ecd0

cmd/compile/internal/ssa: improve store combine optimization on arm64 · 05962561

Wei Xiao authored Mar 05, 2018

Current implementation doesn't consider MOVDreg type operand and fail to combine
it into larger store. This patch fixes the issue.

Fixes #24242

Change-Id: I7d68697f80e76f48c3528ece01a602bf513248ec
Reviewed-on: https://go-review.googlesource.com/98397
Run-TryBot: Giovanni Bajo <rasky@develer.com>
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05962561

encoding/binary: use an offset instead of slicing · b8543397

Josh Bleecher Snyder authored Mar 05, 2018

While running make.bash, over 5% of all pointer writes
come from encoding/binary doing struct reads.

This change replaces slicing during such reads with an offset.
This avoids updating the slice pointer with every
struct field read or write.

This has no impact when the write barrier is off.
Running the benchmarks with GOGC=1, however,
shows significant improvement:

name          old time/op    new time/op    delta
ReadStruct-8    13.2µs ± 6%    10.1µs ± 5%  -23.24%  (p=0.000 n=10+10)

name          old speed      new speed      delta
ReadStruct-8  5.69MB/s ± 6%  7.40MB/s ± 5%  +30.18%  (p=0.000 n=10+10)

Change-Id: I22904263196bfeddc38abe8989428e263aee5253
Reviewed-on: https://go-review.googlesource.com/98757
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
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b8543397

runtime: skip pointless writes in freedefer · f7739c07

Josh Bleecher Snyder authored Mar 02, 2018

Change-Id: I501a0e5c87ec88616c7dcdf1b723758b6df6c088
Reviewed-on: https://go-review.googlesource.com/98758
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
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Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

f7739c07

debug/macho: use bytes.IndexByte instead of a loop · 4599419e

Josh Bleecher Snyder authored Mar 05, 2018

Simpler, and no doubt faster.

Change-Id: Idd401918da07a257de365087721e9ff061e6fd07
Reviewed-on: https://go-review.googlesource.com/98759
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
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4599419e

cmd/compile/internal/ssa: inline small memmove for arm64 · 0e8b7110

Balaram Makam authored Mar 05, 2018

This patch enables the optimization for arm64 target.

Performance results on Amberwing for strconv benchmark:
name             old time/op  new time/op  delta
Quote             721ns ± 0%   617ns ± 0%  -14.40%  (p=0.016 n=5+4)
QuoteRune         118ns ± 0%   117ns ± 0%   -0.85%  (p=0.008 n=5+5)
AppendQuote       436ns ± 2%   321ns ± 0%  -26.31%  (p=0.008 n=5+5)
AppendQuoteRune  34.7ns ± 0%  28.4ns ± 0%  -18.16%  (p=0.000 n=5+4)
[Geo mean]        189ns        160ns       -15.41%

Change-Id: I5714c474e7483d07ca338fbaf49beb4bbcc11c44
Reviewed-on: https://go-review.googlesource.com/98735
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Giovanni Bajo <rasky@develer.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>

0e8b7110

test/codegen: port math/bits.OnesCount tests to codegen · 18ae5eca

Alberto Donizetti authored Mar 06, 2018

And remove them from ssa_test.

Change-Id: I3efac5fea529bb0efa2dae32124530482ba5058e
Reviewed-on: https://go-review.googlesource.com/98815Reviewed-by: Keith Randall <khr@golang.org>

18ae5eca

cmd/internal/obj/arm64: gofmt · f6244454

Cherry Zhang authored Mar 06, 2018

Change-Id: Ica778fef2d0245fbb14f595597e45c7cf6adef84
Reviewed-on: https://go-review.googlesource.com/98895
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
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f6244454

iostest.bash: don't build std library twice · f5f16d1e

Elias Naur authored Mar 06, 2018

Instead, mirror androidtest.bash and build once, then run run.bash.

Change-Id: I174ae30b2a429a62b20bb290a70cb07ed712b1e4
Reviewed-on: https://go-review.googlesource.com/98915Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Run-TryBot: Elias Naur <elias.naur@gmail.com>
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f5f16d1e

cmd/dist: default to GOARM=7 on android · ad87a67c

Elias Naur authored Mar 06, 2018

Auto-detecting GOARM on Android makes as little sense as for nacl/arm
and darwin/arm.

Also update androidtest.sh to not require GOARM set.

Change-Id: Id409ce1573d3c668d00fa4b7e3562ad7ece6fef5
Reviewed-on: https://go-review.googlesource.com/98875Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com>
Run-TryBot: Elias Naur <elias.naur@gmail.com>
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ad87a67c

math/big: don't use R18 in ARM64 assembly · 084143d8

Cherry Zhang authored Mar 06, 2018

R18 seems reserved on Apple platforms.

May fix darwin/arm64 build.

Change-Id: Ia2c1de550a64827c85a64affa53b94c62aacce8e
Reviewed-on: https://go-review.googlesource.com/98896
Run-TryBot: Cherry Zhang <cherryyz@google.com>
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084143d8

runtime: fix stack switch check in walltime/nanotime on linux/arm · 9745397e

Tobias Klauser authored Mar 06, 2018

CL 98095 got the check wrong. We should be testing
'getg() == getg().m.curg', not 'getg().m == getg().m.curg'.

Change-Id: I32f6238b00409b67afa8efe732513d542aec5bc7
Reviewed-on: https://go-review.googlesource.com/98855
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

9745397e

test/codegen: port math/bits.TrailingZeros tests to codegen · 85dcc709

Alberto Donizetti authored Mar 06, 2018

And remove them from ssa_test.

Change-Id: Ib5de5c0d908f23915e0847eca338cacf2fa5325b
Reviewed-on: https://go-review.googlesource.com/98795Reviewed-by: Giovanni Bajo <rasky@develer.com>

85dcc709

net/http: correct subtle transposition of offset and whence in test · df8c2b90

as authored Mar 06, 2018

Change-Id: I788972bdf85c0225397c0e74901bf9c33c6d30c7
GitHub-Last-Rev: 57737fe782bf7ad2d765c2efd80d75b3baca2c7b
GitHub-Pull-Request: golang/go#24265
Reviewed-on: https://go-review.googlesource.com/98761Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

df8c2b90

runtime, cmd/compile: use ldp for DUFFCOPY on ARM64 · 8916773a

Meng Zhuo authored Mar 06, 2018

name old time/op new time/op delta
CopyFat8 2.15ns ± 1% 2.19ns ± 6% ~ (p=0.171 n=8+9)
CopyFat12 2.15ns ± 0% 2.17ns ± 2% ~ (p=0.137 n=8+10)
CopyFat16 2.17ns ± 3% 2.15ns ± 0% ~ (p=0.211 n=10+10)
CopyFat24 2.16ns ± 1% 2.15ns ± 0% ~ (p=0.087 n=10+10)
CopyFat32 11.5ns ± 0% 12.8ns ± 2% +10.87% (p=0.000 n=8+10)
CopyFat64 20.2ns ± 2% 12.9ns ± 0% -36.11% (p=0.000 n=10+10)
CopyFat128 37.2ns ± 0% 21.5ns ± 0% -42.20% (p=0.000 n=10+10)
CopyFat256 71.6ns ± 0% 38.7ns ± 0% -45.95% (p=0.000 n=10+10)
CopyFat512 140ns ± 0% 73ns ± 0% -47.86% (p=0.000 n=10+9)
CopyFat520 142ns ± 0% 74ns ± 0% -47.54% (p=0.000 n=10+10)
CopyFat1024 277ns ± 0% 141ns ± 0% -49.10% (p=0.000 n=10+10)

Change-Id: If54bc571add5db674d5e081579c87e80153d0a5a
Reviewed-on: https://go-review.googlesource.com/97395Reviewed-by: Cherry Zhang <cherryyz@google.com>

8916773a

cmd/doc: make local dot-slash path names work · baf3eb16

Rob Pike authored Mar 05, 2018

Before, an argument that started ./ or ../ was not treated as
a package relative to the current directory. Thus

	$ cd $GOROOT/src/text
	$ go doc ./template

could find html/template as $GOROOT/src/html/./template
is a valid Go source directory.

Fix this by catching such paths and making them absolute before
processing.

Fixes #23383.

Change-Id: Ic2a92eaa3a6328f728635657f9de72ac3ee82afb
Reviewed-on: https://go-review.googlesource.com/98396Reviewed-by: Ian Lance Taylor <iant@golang.org>

baf3eb16

crypto/aes: optimize arm64 AES implementation · 917e7269

Fangming.Fang authored Aug 22, 2017

This patch makes use of arm64 AES instructions to accelerate AES computation
and only supports optimization on Linux for arm64

name        old time/op    new time/op     delta
Encrypt-32     255ns ± 0%       26ns ± 0%   -89.73%
Decrypt-32     256ns ± 0%       26ns ± 0%   -89.77%
Expand-32      990ns ± 5%      901ns ± 0%    -9.05%

name        old speed      new speed       delta
Encrypt-32  62.5MB/s ± 0%  610.4MB/s ± 0%  +876.39%
Decrypt-32  62.3MB/s ± 0%  610.2MB/s ± 0%  +879.6%

Fixes #18498

Change-Id: If416e5a151785325527b32ff72f6da3812493ed0
Reviewed-on: https://go-review.googlesource.com/64490
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>

917e7269

math/big: optimize addVV and subVV on arm64 · c4f3fe95

erifan01 authored Sep 25, 2017

The biggest hot spot of the existing implementation is "load" operations, which lead to poor performance.
By unrolling the cycle 4x and 2x, and using "LDP", "STP" instructions, this CL can reduce the "load" cost and improve performance.

Benchmarks:

name old time/op new time/op delta
AddVV/1-8 21.5ns ± 0% 11.5ns ± 0% -46.51% (p=0.008 n=5+5)
AddVV/2-8 13.5ns ± 0% 12.0ns ± 0% -11.11% (p=0.008 n=5+5)
AddVV/3-8 15.5ns ± 0% 13.0ns ± 0% -16.13% (p=0.008 n=5+5)
AddVV/4-8 17.5ns ± 0% 13.5ns ± 0% -22.86% (p=0.008 n=5+5)
AddVV/5-8 19.5ns ± 0% 14.5ns ± 0% -25.64% (p=0.008 n=5+5)
AddVV/10-8 29.5ns ± 0% 18.0ns ± 0% -38.98% (p=0.008 n=5+5)
AddVV/100-8 217ns ± 0% 94ns ± 0% -56.64% (p=0.008 n=5+5)
AddVV/1000-8 2.02µs ± 0% 1.03µs ± 0% -48.85% (p=0.008 n=5+5)
AddVV/10000-8 20.5µs ± 0% 11.3µs ± 0% -44.70% (p=0.008 n=5+5)
AddVV/100000-8 247µs ± 3% 154µs ± 0% -37.52% (p=0.008 n=5+5)
SubVV/1-8 21.5ns ± 0% 11.5ns ± 0% ~ (p=0.079 n=4+5)
SubVV/2-8 13.5ns ± 0% 12.0ns ± 0% -11.11% (p=0.008 n=5+5)
SubVV/3-8 15.5ns ± 0% 13.0ns ± 0% -16.13% (p=0.008 n=5+5)
SubVV/4-8 17.5ns ± 0% 13.5ns ± 0% -22.86% (p=0.008 n=5+5)
SubVV/5-8 19.5ns ± 0% 14.5ns ± 0% -25.64% (p=0.008 n=5+5)
SubVV/10-8 29.5ns ± 0% 18.0ns ± 0% -38.98% (p=0.008 n=5+5)
SubVV/100-8 217ns ± 0% 94ns ± 0% -56.64% (p=0.008 n=5+5)
SubVV/1000-8 2.02µs ± 0% 0.80µs ± 0% -60.50% (p=0.008 n=5+5)
SubVV/10000-8 20.5µs ± 0% 11.3µs ± 0% -44.99% (p=0.008 n=5+5)
SubVV/100000-8 221µs ±11% 223µs ±16% ~ (p=0.690 n=5+5)
AddVW/1-8 9.32ns ± 0% 9.32ns ± 0% ~ (all equal)
AddVW/2-8 19.7ns ± 1% 19.7ns ± 0% ~ (p=0.381 n=5+4)
AddVW/3-8 11.5ns ± 0% 11.5ns ± 0% ~ (all equal)
AddVW/4-8 13.0ns ± 0% 13.0ns ± 0% ~ (all equal)
AddVW/5-8 14.5ns ± 0% 14.5ns ± 0% ~ (all equal)
AddVW/10-8 22.0ns ± 0% 22.0ns ± 0% ~ (all equal)
AddVW/100-8 167ns ± 0% 167ns ± 0% ~ (all equal)
AddVW/1000-8 1.52µs ± 0% 1.52µs ± 0% +0.40% (p=0.008 n=5+5)
AddVW/10000-8 15.1µs ± 0% 15.1µs ± 0% ~ (p=0.556 n=5+4)
AddVW/100000-8 152µs ± 1% 152µs ± 1% ~ (p=0.690 n=5+5)
AddMulVVW/1-8 33.3ns ± 0% 32.7ns ± 1% -1.86% (p=0.008 n=5+5)
AddMulVVW/2-8 59.3ns ± 1% 56.9ns ± 1% -4.15% (p=0.008 n=5+5)
AddMulVVW/3-8 80.5ns ± 1% 85.4ns ± 3% +6.19% (p=0.008 n=5+5)
AddMulVVW/4-8 127ns ± 0% 111ns ± 1% -13.19% (p=0.008 n=5+5)
AddMulVVW/5-8 144ns ± 0% 149ns ± 0% +3.47% (p=0.016 n=4+5)
AddMulVVW/10-8 298ns ± 1% 283ns ± 0% -4.77% (p=0.008 n=5+5)
AddMulVVW/100-8 3.06µs ± 0% 2.99µs ± 0% -2.21% (p=0.008 n=5+5)
AddMulVVW/1000-8 31.3µs ± 0% 26.9µs ± 0% -14.17% (p=0.008 n=5+5)
AddMulVVW/10000-8 316µs ± 0% 305µs ± 0% -3.51% (p=0.008 n=5+5)
AddMulVVW/100000-8 3.17ms ± 0% 3.17ms ± 1% ~ (p=0.690 n=5+5)
DecimalConversion-8 316µs ± 1% 313µs ± 2% ~ (p=0.095 n=5+5)
FloatString/100-8 2.53µs ± 1% 2.56µs ± 2% ~ (p=0.222 n=5+5)
FloatString/1000-8 58.4µs ± 0% 58.5µs ± 0% ~ (p=0.206 n=5+5)
FloatString/10000-8 4.59ms ± 0% 4.58ms ± 0% -0.31% (p=0.008 n=5+5)
FloatString/100000-8 446ms ± 0% 444ms ± 0% -0.31% (p=0.008 n=5+5)
FloatAdd/10-8 184ns ± 0% 172ns ± 0% -6.30% (p=0.008 n=5+5)
FloatAdd/100-8 189ns ± 2% 191ns ± 4% ~ (p=0.381 n=5+5)
FloatAdd/1000-8 371ns ± 0% 347ns ± 1% -6.42% (p=0.008 n=5+5)
FloatAdd/10000-8 1.87µs ± 0% 1.68µs ± 0% -10.16% (p=0.008 n=5+5)
FloatAdd/100000-8 17.1µs ± 0% 15.6µs ± 0% -8.74% (p=0.016 n=5+4)
FloatSub/10-8 152ns ± 0% 138ns ± 0% -9.47% (p=0.000 n=4+5)
FloatSub/100-8 148ns ± 0% 142ns ± 0% -4.05% (p=0.000 n=5+4)
FloatSub/1000-8 245ns ± 1% 217ns ± 0% -11.28% (p=0.000 n=5+4)
FloatSub/10000-8 1.07µs ± 0% 0.88µs ± 1% -18.14% (p=0.008 n=5+5)
FloatSub/100000-8 9.58µs ± 0% 7.96µs ± 0% -16.84% (p=0.008 n=5+5)
ParseFloatSmallExp-8 28.8µs ± 1% 29.0µs ± 1% ~ (p=0.095 n=5+5)
ParseFloatLargeExp-8 126µs ± 1% 126µs ± 1% ~ (p=0.841 n=5+5)
GCD10x10/WithoutXY-8 277ns ± 2% 281ns ± 4% ~ (p=0.746 n=5+5)
GCD10x10/WithXY-8 2.10µs ± 1% 2.12µs ± 3% ~ (p=0.548 n=5+5)
GCD10x100/WithoutXY-8 615ns ± 3% 607ns ± 2% ~ (p=0.135 n=5+5)
GCD10x100/WithXY-8 3.50µs ± 2% 3.62µs ± 5% ~ (p=0.151 n=5+5)
GCD10x1000/WithoutXY-8 1.39µs ± 2% 1.39µs ± 3% ~ (p=0.690 n=5+5)
GCD10x1000/WithXY-8 7.39µs ± 1% 7.34µs ± 2% ~ (p=0.135 n=5+5)
GCD10x10000/WithoutXY-8 8.66µs ± 1% 8.68µs ± 1% ~ (p=0.421 n=5+5)
GCD10x10000/WithXY-8 28.1µs ± 2% 27.0µs ± 2% -3.81% (p=0.008 n=5+5)
GCD10x100000/WithoutXY-8 79.3µs ± 1% 79.3µs ± 1% ~ (p=0.841 n=5+5)
GCD10x100000/WithXY-8 238µs ± 0% 227µs ± 1% -4.74% (p=0.008 n=5+5)
GCD100x100/WithoutXY-8 1.89µs ± 1% 1.88µs ± 2% ~ (p=0.968 n=5+5)
GCD100x100/WithXY-8 26.7µs ± 1% 27.0µs ± 1% +1.44% (p=0.032 n=5+5)
GCD100x1000/WithoutXY-8 4.48µs ± 1% 4.45µs ± 2% ~ (p=0.341 n=5+5)
GCD100x1000/WithXY-8 36.3µs ± 1% 35.1µs ± 1% -3.27% (p=0.008 n=5+5)
GCD100x10000/WithoutXY-8 22.8µs ± 0% 22.7µs ± 1% ~ (p=0.056 n=5+5)
GCD100x10000/WithXY-8 145µs ± 1% 133µs ± 1% -8.33% (p=0.008 n=5+5)
GCD100x100000/WithoutXY-8 198µs ± 0% 195µs ± 0% -1.56% (p=0.008 n=5+5)
GCD100x100000/WithXY-8 1.11ms ± 0% 1.00ms ± 0% -10.04% (p=0.008 n=5+5)
GCD1000x1000/WithoutXY-8 25.2µs ± 1% 24.8µs ± 1% -1.63% (p=0.016 n=5+5)
GCD1000x1000/WithXY-8 513µs ± 0% 517µs ± 2% ~ (p=0.421 n=5+5)
GCD1000x10000/WithoutXY-8 57.0µs ± 0% 52.7µs ± 1% -7.56% (p=0.008 n=5+5)
GCD1000x10000/WithXY-8 1.20ms ± 0% 1.10ms ± 0% -8.70% (p=0.008 n=5+5)
GCD1000x100000/WithoutXY-8 358µs ± 0% 318µs ± 1% -11.03% (p=0.008 n=5+5)
GCD1000x100000/WithXY-8 8.71ms ± 0% 7.65ms ± 0% -12.19% (p=0.008 n=5+5)
GCD10000x10000/WithoutXY-8 690µs ± 0% 630µs ± 0% -8.71% (p=0.008 n=5+5)
GCD10000x10000/WithXY-8 16.0ms ± 1% 14.9ms ± 0% -6.85% (p=0.008 n=5+5)
GCD10000x100000/WithoutXY-8 2.09ms ± 0% 1.75ms ± 0% -16.09% (p=0.016 n=5+4)
GCD10000x100000/WithXY-8 86.8ms ± 0% 76.3ms ± 0% -12.09% (p=0.008 n=5+5)
GCD100000x100000/WithoutXY-8 51.1ms ± 0% 46.0ms ± 0% -9.97% (p=0.008 n=5+5)
GCD100000x100000/WithXY-8 1.25s ± 0% 1.15s ± 0% -7.92% (p=0.008 n=5+5)
Hilbert-8 2.45ms ± 1% 2.49ms ± 1% +1.99% (p=0.008 n=5+5)
Binomial-8 4.98µs ± 3% 4.90µs ± 2% ~ (p=0.421 n=5+5)
QuoRem-8 7.10µs ± 0% 6.21µs ± 0% -12.55% (p=0.016 n=5+4)
Exp-8 161ms ± 0% 161ms ± 0% ~ (p=0.421 n=5+5)
Exp2-8 161ms ± 0% 161ms ± 0% ~ (p=0.151 n=5+5)
Bitset-8 40.4ns ± 0% 40.3ns ± 0% ~ (p=0.190 n=5+5)
BitsetNeg-8 163ns ± 3% 137ns ± 2% -15.91% (p=0.008 n=5+5)
BitsetOrig-8 377ns ± 1% 372ns ± 1% -1.22% (p=0.024 n=5+5)
BitsetNegOrig-8 631ns ± 1% 605ns ± 1% -4.09% (p=0.008 n=5+5)
ModSqrt225_Tonelli-8 7.26ms ± 0% 7.26ms ± 0% ~ (p=0.548 n=5+5)
ModSqrt224_3Mod4-8 2.24ms ± 0% 2.24ms ± 0% ~ (p=1.000 n=5+5)
ModSqrt5430_Tonelli-8 62.4s ± 0% 62.4s ± 0% ~ (p=0.841 n=5+5)
ModSqrt5430_3Mod4-8 20.8s ± 0% 20.7s ± 0% ~ (p=0.056 n=5+5)
Sqrt-8 101µs ± 0% 89µs ± 0% -12.17% (p=0.008 n=5+5)
IntSqr/1-8 32.5ns ± 1% 32.7ns ± 1% ~ (p=0.056 n=5+5)
IntSqr/2-8 160ns ± 5% 158ns ± 0% ~ (p=0.397 n=5+4)
IntSqr/3-8 298ns ± 4% 296ns ± 4% ~ (p=0.667 n=5+5)
IntSqr/5-8 737ns ± 5% 761ns ± 3% +3.34% (p=0.016 n=5+5)
IntSqr/8-8 1.87µs ± 4% 1.90µs ± 3% ~ (p=0.222 n=5+5)
IntSqr/10-8 2.96µs ± 4% 2.92µs ± 6% ~ (p=0.310 n=5+5)
IntSqr/20-8 6.28µs ± 3% 6.21µs ± 2% ~ (p=0.310 n=5+5)
IntSqr/30-8 14.0µs ± 2% 13.9µs ± 2% ~ (p=0.548 n=5+5)
IntSqr/50-8 37.7µs ± 3% 38.3µs ± 2% ~ (p=0.095 n=5+5)
IntSqr/80-8 95.9µs ± 2% 95.1µs ± 1% ~ (p=0.310 n=5+5)
IntSqr/100-8 148µs ± 1% 148µs ± 1% ~ (p=0.841 n=5+5)
IntSqr/200-8 586µs ± 1% 587µs ± 1% ~ (p=1.000 n=5+5)
IntSqr/300-8 1.32ms ± 0% 1.31ms ± 1% -0.73% (p=0.032 n=5+5)
IntSqr/500-8 2.48ms ± 0% 2.45ms ± 0% -1.15% (p=0.008 n=5+5)
IntSqr/800-8 4.68ms ± 0% 4.62ms ± 0% -1.23% (p=0.008 n=5+5)
IntSqr/1000-8 7.57ms ± 0% 7.50ms ± 0% -0.84% (p=0.008 n=5+5)
Mul-8 311ms ± 0% 308ms ± 0% -0.81% (p=0.008 n=5+5)
Exp3Power/0x10-8 574ns ± 1% 578ns ± 2% ~ (p=0.500 n=5+5)
Exp3Power/0x40-8 640ns ± 1% 646ns ± 0% ~ (p=0.056 n=5+5)
Exp3Power/0x100-8 1.42µs ± 1% 1.42µs ± 1% ~ (p=0.246 n=5+5)
Exp3Power/0x400-8 8.30µs ± 1% 8.29µs ± 1% ~ (p=0.802 n=5+5)
Exp3Power/0x1000-8 60.0µs ± 0% 59.9µs ± 0% -0.24% (p=0.016 n=5+5)
Exp3Power/0x4000-8 817µs ± 0% 816µs ± 0% -0.17% (p=0.008 n=5+5)
Exp3Power/0x10000-8 7.80ms ± 1% 7.70ms ± 0% -1.23% (p=0.008 n=5+5)
Exp3Power/0x40000-8 73.4ms ± 0% 72.5ms ± 0% -1.28% (p=0.008 n=5+5)
Exp3Power/0x100000-8 665ms ± 0% 656ms ± 0% -1.34% (p=0.008 n=5+5)
Exp3Power/0x400000-8 5.99s ± 0% 5.90s ± 0% -1.40% (p=0.008 n=5+5)
Fibo-8 116ms ± 0% 50ms ± 0% -57.09% (p=0.008 n=5+5)
NatSqr/1-8 112ns ± 4% 112ns ± 2% ~ (p=0.968 n=5+5)
NatSqr/2-8 251ns ± 2% 250ns ± 1% ~ (p=0.571 n=5+5)
NatSqr/3-8 378ns ± 2% 379ns ± 2% ~ (p=0.794 n=5+5)
NatSqr/5-8 829ns ± 3% 827ns ± 2% ~ (p=1.000 n=5+5)
NatSqr/8-8 1.97µs ± 2% 1.95µs ± 2% ~ (p=0.310 n=5+5)
NatSqr/10-8 3.02µs ± 2% 2.99µs ± 2% ~ (p=0.421 n=5+5)
NatSqr/20-8 6.51µs ± 2% 6.49µs ± 1% ~ (p=0.841 n=5+5)
NatSqr/30-8 14.1µs ± 2% 14.0µs ± 2% ~ (p=0.841 n=5+5)
NatSqr/50-8 38.1µs ± 2% 38.3µs ± 3% ~ (p=0.690 n=5+5)
NatSqr/80-8 95.5µs ± 2% 96.0µs ± 1% ~ (p=0.421 n=5+5)
NatSqr/100-8 150µs ± 1% 148µs ± 2% ~ (p=0.095 n=5+5)
NatSqr/200-8 588µs ± 1% 590µs ± 1% ~ (p=0.421 n=5+5)
NatSqr/300-8 1.32ms ± 1% 1.31ms ± 1% ~ (p=0.841 n=5+5)
NatSqr/500-8 2.50ms ± 0% 2.47ms ± 0% -1.03% (p=0.008 n=5+5)
NatSqr/800-8 4.70ms ± 0% 4.64ms ± 0% -1.31% (p=0.008 n=5+5)
NatSqr/1000-8 7.60ms ± 0% 7.52ms ± 0% -1.01% (p=0.008 n=5+5)
ScanPi-8 326µs ± 0% 326µs ± 0% ~ (p=0.841 n=5+5)
StringPiParallel-8 70.3µs ± 5% 63.8µs ±10% ~ (p=0.056 n=5+5)
Scan/10/Base2-8 1.09µs ± 0% 1.09µs ± 0% ~ (p=0.317 n=5+5)
Scan/100/Base2-8 7.79µs ± 0% 7.78µs ± 0% ~ (p=0.063 n=5+5)
Scan/1000/Base2-8 79.0µs ± 0% 78.9µs ± 0% -0.18% (p=0.008 n=5+5)
Scan/10000/Base2-8 1.22ms ± 0% 1.22ms ± 0% -0.15% (p=0.008 n=5+5)
Scan/100000/Base2-8 55.1ms ± 0% 55.2ms ± 0% +0.20% (p=0.008 n=5+5)
Scan/10/Base8-8 512ns ± 0% 512ns ± 1% ~ (p=0.810 n=5+5)
Scan/100/Base8-8 2.89µs ± 0% 2.89µs ± 0% ~ (p=0.810 n=5+5)
Scan/1000/Base8-8 31.0µs ± 0% 31.0µs ± 0% ~ (p=0.151 n=5+5)
Scan/10000/Base8-8 740µs ± 0% 741µs ± 0% +0.10% (p=0.008 n=5+5)
Scan/100000/Base8-8 50.6ms ± 0% 50.6ms ± 0% +0.08% (p=0.008 n=5+5)
Scan/10/Base10-8 487ns ± 0% 487ns ± 0% ~ (p=0.571 n=5+5)
Scan/100/Base10-8 2.67µs ± 0% 2.67µs ± 0% ~ (p=0.810 n=5+5)
Scan/1000/Base10-8 28.7µs ± 0% 28.7µs ± 0% +0.06% (p=0.008 n=5+5)
Scan/10000/Base10-8 716µs ± 0% 717µs ± 0% ~ (p=0.222 n=5+5)
Scan/100000/Base10-8 50.3ms ± 0% 50.3ms ± 0% +0.10% (p=0.008 n=5+5)
Scan/10/Base16-8 438ns ± 0% 437ns ± 1% ~ (p=0.786 n=5+5)
Scan/100/Base16-8 2.47µs ± 0% 2.47µs ± 0% -0.19% (p=0.048 n=5+5)
Scan/1000/Base16-8 27.2µs ± 0% 27.3µs ± 0% ~ (p=0.087 n=5+5)
Scan/10000/Base16-8 722µs ± 0% 722µs ± 0% +0.11% (p=0.008 n=5+5)
Scan/100000/Base16-8 52.6ms ± 0% 52.7ms ± 0% +0.15% (p=0.008 n=5+5)
String/10/Base2-8 247ns ± 2% 248ns ± 1% ~ (p=0.437 n=5+5)
String/100/Base2-8 1.51µs ± 0% 1.51µs ± 0% -0.37% (p=0.024 n=5+5)
String/1000/Base2-8 13.6µs ± 1% 13.5µs ± 0% ~ (p=0.095 n=5+5)
String/10000/Base2-8 135µs ± 0% 135µs ± 1% ~ (p=0.841 n=5+5)
String/100000/Base2-8 1.32ms ± 1% 1.32ms ± 1% ~ (p=0.690 n=5+5)
String/10/Base8-8 169ns ± 1% 169ns ± 1% ~ (p=1.000 n=5+5)
String/100/Base8-8 636ns ± 0% 634ns ± 1% ~ (p=0.413 n=5+5)
String/1000/Base8-8 5.33µs ± 1% 5.32µs ± 0% ~ (p=0.222 n=5+5)
String/10000/Base8-8 50.9µs ± 1% 50.7µs ± 0% ~ (p=0.151 n=5+5)
String/100000/Base8-8 500µs ± 1% 497µs ± 0% ~ (p=0.421 n=5+5)
String/10/Base10-8 516ns ± 1% 513ns ± 0% -0.62% (p=0.016 n=5+4)
String/100/Base10-8 1.97µs ± 0% 1.96µs ± 0% ~ (p=0.667 n=4+5)
String/1000/Base10-8 12.5µs ± 0% 11.5µs ± 0% -7.92% (p=0.008 n=5+5)
String/10000/Base10-8 57.7µs ± 0% 52.5µs ± 0% -8.93% (p=0.008 n=5+5)
String/100000/Base10-8 25.6ms ± 0% 21.6ms ± 0% -15.94% (p=0.008 n=5+5)
String/10/Base16-8 150ns ± 1% 149ns ± 0% ~ (p=0.413 n=5+4)
String/100/Base16-8 514ns ± 1% 514ns ± 1% ~ (p=0.849 n=5+5)
String/1000/Base16-8 4.01µs ± 0% 4.01µs ± 0% ~ (p=0.421 n=5+5)
String/10000/Base16-8 37.8µs ± 1% 37.8µs ± 1% ~ (p=0.841 n=5+5)
String/100000/Base16-8 373µs ± 2% 373µs ± 0% ~ (p=0.421 n=5+5)
LeafSize/0-8 6.63ms ± 0% 6.63ms ± 0% ~ (p=0.730 n=4+5)
LeafSize/1-8 74.0µs ± 0% 67.7µs ± 1% -8.53% (p=0.008 n=5+5)
LeafSize/2-8 74.2µs ± 0% 68.3µs ± 1% -7.99% (p=0.008 n=5+5)
LeafSize/3-8 379µs ± 0% 309µs ± 0% -18.52% (p=0.008 n=5+5)
LeafSize/4-8 72.7µs ± 1% 66.7µs ± 0% -8.37% (p=0.008 n=5+5)
LeafSize/5-8 471µs ± 0% 384µs ± 0% -18.55% (p=0.008 n=5+5)
LeafSize/6-8 378µs ± 0% 308µs ± 0% -18.59% (p=0.008 n=5+5)
LeafSize/7-8 245µs ± 0% 204µs ± 1% -16.75% (p=0.008 n=5+5)
LeafSize/8-8 73.4µs ± 0% 66.9µs ± 1% -8.79% (p=0.008 n=5+5)
LeafSize/9-8 538µs ± 0% 437µs ± 0% -18.75% (p=0.008 n=5+5)
LeafSize/10-8 472µs ± 0% 396µs ± 1% -16.01% (p=0.008 n=5+5)
LeafSize/11-8 460µs ± 0% 374µs ± 0% -18.58% (p=0.008 n=5+5)
LeafSize/12-8 378µs ± 0% 308µs ± 0% -18.38% (p=0.008 n=5+5)
LeafSize/13-8 343µs ± 0% 284µs ± 0% -17.30% (p=0.008 n=5+5)
LeafSize/14-8 248µs ± 0% 206µs ± 0% -16.94% (p=0.008 n=5+5)
LeafSize/15-8 169µs ± 0% 144µs ± 0% -14.69% (p=0.008 n=5+5)
LeafSize/16-8 72.9µs ± 0% 66.8µs ± 1% -8.27% (p=0.008 n=5+5)
LeafSize/32-8 82.5µs ± 0% 76.7µs ± 0% -7.04% (p=0.008 n=5+5)
LeafSize/64-8 134µs ± 0% 129µs ± 0% -3.80% (p=0.008 n=5+5)
ProbablyPrime/n=0-8 44.2ms ± 0% 43.4ms ± 0% -1.95% (p=0.008 n=5+5)
ProbablyPrime/n=1-8 64.9ms ± 0% 64.0ms ± 0% -1.27% (p=0.008 n=5+5)
ProbablyPrime/n=5-8 147ms ± 0% 146ms ± 0% -0.58% (p=0.008 n=5+5)
ProbablyPrime/n=10-8 250ms ± 0% 249ms ± 0% -0.35% (p=0.008 n=5+5)
ProbablyPrime/n=20-8 456ms ± 0% 455ms ± 0% -0.18% (p=0.008 n=5+5)
ProbablyPrime/Lucas-8 23.6ms ± 0% 22.7ms ± 0% -3.74% (p=0.008 n=5+5)
ProbablyPrime/MillerRabinBase2-8 20.7ms ± 0% 20.6ms ± 0% ~ (p=0.421 n=5+5)
FloatSqrt/64-8 2.25µs ± 1% 2.29µs ± 0% +1.48% (p=0.008 n=5+5)
FloatSqrt/128-8 4.86µs ± 1% 4.92µs ± 1% +1.21% (p=0.032 n=5+5)
FloatSqrt/256-8 13.6µs ± 0% 13.7µs ± 1% +1.31% (p=0.032 n=5+5)
FloatSqrt/1000-8 70.0µs ± 1% 70.1µs ± 0% ~ (p=0.690 n=5+5)
FloatSqrt/10000-8 1.92ms ± 0% 1.90ms ± 0% -0.59% (p=0.008 n=5+5)
FloatSqrt/100000-8 55.3ms ± 0% 54.8ms ± 0% -1.01% (p=0.008 n=5+5)
FloatSqrt/1000000-8 4.56s ± 0% 4.50s ± 0% -1.28% (p=0.008 n=5+5)

name old speed new speed delta
AddVV/1-8 2.97GB/s ± 0% 5.56GB/s ± 0% +86.85% (p=0.008 n=5+5)
AddVV/2-8 9.47GB/s ± 0% 10.66GB/s ± 0% +12.50% (p=0.008 n=5+5)
AddVV/3-8 12.4GB/s ± 0% 14.7GB/s ± 0% +19.10% (p=0.008 n=5+5)
AddVV/4-8 14.6GB/s ± 0% 18.9GB/s ± 0% +29.63% (p=0.016 n=4+5)
AddVV/5-8 16.4GB/s ± 0% 22.0GB/s ± 0% +34.47% (p=0.016 n=5+4)
AddVV/10-8 21.7GB/s ± 0% 35.5GB/s ± 0% +63.89% (p=0.008 n=5+5)
AddVV/100-8 29.4GB/s ± 0% 68.0GB/s ± 0% +131.38% (p=0.008 n=5+5)
AddVV/1000-8 31.7GB/s ± 0% 61.9GB/s ± 0% +95.43% (p=0.008 n=5+5)
AddVV/10000-8 31.2GB/s ± 0% 56.4GB/s ± 0% +80.83% (p=0.008 n=5+5)
AddVV/100000-8 25.9GB/s ± 3% 41.4GB/s ± 0% +59.98% (p=0.008 n=5+5)
SubVV/1-8 2.97GB/s ± 0% 5.56GB/s ± 0% +86.97% (p=0.016 n=4+5)
SubVV/2-8 9.47GB/s ± 0% 10.66GB/s ± 0% +12.51% (p=0.008 n=5+5)
SubVV/3-8 12.4GB/s ± 0% 14.8GB/s ± 0% +19.23% (p=0.016 n=4+5)
SubVV/4-8 14.6GB/s ± 0% 18.9GB/s ± 0% +29.56% (p=0.008 n=5+5)
SubVV/5-8 16.4GB/s ± 0% 22.0GB/s ± 0% +34.47% (p=0.016 n=4+5)
SubVV/10-8 21.7GB/s ± 0% 35.5GB/s ± 0% +63.89% (p=0.008 n=5+5)
SubVV/100-8 29.4GB/s ± 0% 68.0GB/s ± 0% +131.38% (p=0.008 n=5+5)
SubVV/1000-8 31.6GB/s ± 0% 80.1GB/s ± 0% +153.08% (p=0.008 n=5+5)
SubVV/10000-8 31.2GB/s ± 0% 56.7GB/s ± 0% +81.79% (p=0.008 n=5+5)
SubVV/100000-8 29.1GB/s ±10% 29.0GB/s ±18% ~ (p=0.690 n=5+5)
AddVW/1-8 859MB/s ± 0% 859MB/s ± 0% -0.01% (p=0.008 n=5+5)
AddVW/2-8 811MB/s ± 1% 814MB/s ± 0% ~ (p=0.413 n=5+4)
AddVW/3-8 2.08GB/s ± 0% 2.08GB/s ± 0% ~ (p=0.206 n=5+5)
AddVW/4-8 2.46GB/s ± 0% 2.46GB/s ± 0% ~ (p=0.056 n=5+5)
AddVW/5-8 2.75GB/s ± 0% 2.75GB/s ± 0% ~ (p=0.508 n=5+5)
AddVW/10-8 3.63GB/s ± 0% 3.63GB/s ± 0% ~ (p=0.214 n=5+5)
AddVW/100-8 4.79GB/s ± 0% 4.79GB/s ± 0% ~ (p=0.500 n=5+5)
AddVW/1000-8 5.27GB/s ± 0% 5.25GB/s ± 0% -0.43% (p=0.008 n=5+5)
AddVW/10000-8 5.30GB/s ± 0% 5.30GB/s ± 0% ~ (p=0.397 n=5+5)
AddVW/100000-8 5.27GB/s ± 1% 5.25GB/s ± 1% ~ (p=0.690 n=5+5)
AddMulVVW/1-8 1.92GB/s ± 0% 1.96GB/s ± 1% +1.95% (p=0.008 n=5+5)
AddMulVVW/2-8 2.16GB/s ± 1% 2.25GB/s ± 1% +4.32% (p=0.008 n=5+5)
AddMulVVW/3-8 2.39GB/s ± 1% 2.25GB/s ± 3% -5.79% (p=0.008 n=5+5)
AddMulVVW/4-8 2.00GB/s ± 0% 2.31GB/s ± 1% +15.31% (p=0.008 n=5+5)
AddMulVVW/5-8 2.22GB/s ± 0% 2.14GB/s ± 0% -3.86% (p=0.008 n=5+5)
AddMulVVW/10-8 2.15GB/s ± 1% 2.25GB/s ± 0% +5.03% (p=0.008 n=5+5)
AddMulVVW/100-8 2.09GB/s ± 0% 2.14GB/s ± 0% +2.25% (p=0.008 n=5+5)
AddMulVVW/1000-8 2.04GB/s ± 0% 2.38GB/s ± 0% +16.52% (p=0.008 n=5+5)
AddMulVVW/10000-8 2.03GB/s ± 0% 2.10GB/s ± 0% +3.64% (p=0.008 n=5+5)
AddMulVVW/100000-8 2.02GB/s ± 0% 2.02GB/s ± 1% ~ (p=0.690 n=5+5)

Change-Id: Ie482d67a7dbb5af6f5d81af2b3d9d14bd66336db
Reviewed-on: https://go-review.googlesource.com/77831Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>

c4f3fe95

05 Mar, 2018 10 commits

os/exec: document Process.Kill behaviour · adcf2d59

Yury Smolsky authored Mar 05, 2018

It is not clear from documentation what the Process.Kill does. And it
leads to reccuring confusion about Cmd.Start/Wait methods.

Fixes #24220

Change-Id: I66609d21d2954e195d13648014681530eed8ea6c
Reviewed-on: https://go-review.googlesource.com/98715Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

adcf2d59

path/filepath: use a temp dir in path_test.go · 32e459a0

Mostyn Bramley-Moore authored Mar 05, 2018

We should avoid writing temp files to GOROOT, since it might be readonly.

Fixes #23881

Change-Id: Iaa38ec404b303f0cf27fdfb7daf1ddd60fd5d1c9
GitHub-Last-Rev: de0211df8474cc3bbef40f792e2f85b3b6ee259c
GitHub-Pull-Request: golang/go#24238
Reviewed-on: https://go-review.googlesource.com/98517
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32e459a0

cmd/compile: refactor order.go into methods · 26708439

Matthew Dempsky authored Mar 05, 2018

No functional changes, just changing all the orderfoo functions
into (*Order).foo methods.

Passes toolstash-check.

Change-Id: Ib9833daa98aff3c645ce56794a414f8472689152
Reviewed-on: https://go-review.googlesource.com/98617
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26708439

os/signal: disable loading of history during test · 43b64762

Andrey Mirtchovski authored Mar 05, 2018

This change modifies Go to disable loading of users' shell history for
TestTerminalSignal tests. TestTerminalSignal, as part of its workload,
will execute a new interactive bash shell. Bash will attempt to load the
user's history from the file pointed to by the HISTFILE environment
variable. For users with large histories that may take up to several
seconds, pushing the whole test past the 5 second timeout and causing
it to fail.

Change-Id: I11b2f83ee91f51fa1e9774a39181ab365f9a6b3a
GitHub-Last-Rev: 7efdf616a2fcecdf479420fc0004057cee2ea6b2
GitHub-Pull-Request: golang/go#24255
Reviewed-on: https://go-review.googlesource.com/98616Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>

43b64762

internal/trace: remove backlinks from span/task end to start · d3946f75

Hana Kim authored Mar 02, 2018

This is an updated version of golang.org/cl/96395, with the fix to
TestUserSpan.

This reverts commit 7b6f6267e90a8e4eab37a3f2164ba882e6222adb.

Change-Id: I31eec8ba0997f9178dffef8dac608e731ab70872
Reviewed-on: https://go-review.googlesource.com/98236
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Reviewed-by: Heschi Kreinick <heschi@google.com>

d3946f75

test/codegen: port math/bits.Leadingzero tests to codegen · 83e41b3e

Alberto Donizetti authored Mar 05, 2018

Change-Id: Ic21d25db5d56ce77516c53082dfbc010e5875b81
Reviewed-on: https://go-review.googlesource.com/98655
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
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Reviewed-by: Keith Randall <khr@golang.org>

83e41b3e

runtime: rename vdso symbols to use camel case · 7178267b

Ian Lance Taylor authored Mar 05, 2018

This was originally C code using names with underscores, which were
retained when the code was rewritten into Go. Change the code to use
Go-like camel case names.

The names that come from the ELF ABI are left unchanged.

Change-Id: I181bc5dd81284c07bc67b7df4635f4734b41d646
Reviewed-on: https://go-review.googlesource.com/98520
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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7178267b

runtime: remove unused SYS_* definitions on Linux · 5f80e709

Tobias Klauser authored Mar 05, 2018

Also fix the indentation of the SYS_* definitions in sys_linux_mipsx.s
and order them numerically.

Change-Id: I0c454301c329a163e7db09dcb25d4e825149858c
Reviewed-on: https://go-review.googlesource.com/98448
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5f80e709

test: port bits.Len intrinsics tests to the new codegen harness · c1806906

Alberto Donizetti authored Mar 02, 2018

This change move bits.Len* intrinsification tests to the new codegen
test harness, removing them from the old ssa_test file. Five different
test functions (one for each bit.Len function tested) was used, to
avoid possible unwanted interactions between multiple calls inside one
function.

Change-Id: Iffd5be55b58e88597fa30a562a28dacb01236d8b
Reviewed-on: https://go-review.googlesource.com/98156
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
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c1806906

internal/bytealg: fix arm64 Index function · 63bcabed

Keith Randall authored Mar 05, 2018

Missed removing the argument loading from the indexbody function.

Change-Id: Ia1391231fc99771d00410a09fe80a09f08ceed02
Reviewed-on: https://go-review.googlesource.com/98575
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Reviewed-by: Elias Naur <elias.naur@gmail.com>
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63bcabed

04 Mar, 2018 5 commits

cmd/compile: fold offsets into memory ops · 29fcd57a

Giovanni Bajo authored Mar 02, 2018

Fold offsets for:

  {ADD,SUB,MUL}[SD]mem
  ADD[LQ]constmem
  {ADD,SUB,AND,OR,XOR}[LQ]mem

Cumulatively, the rules trigger ~900 times in all.bash.

Fixes #23325

Change-Id: If6c701f68fa0b57907a353a07a516b914127d0d8
Reviewed-on: https://go-review.googlesource.com/98035
Run-TryBot: Giovanni Bajo <rasky@develer.com>
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29fcd57a

internal/bytealg: move short string Index implementations into bytealg · ee58eccc

Keith Randall authored Mar 04, 2018

Also move the arm64 CountByte implementation while we're here.

Fixes #19792

Change-Id: I1e0fdf1e03e3135af84150a2703b58dad1b0d57e
Reviewed-on: https://go-review.googlesource.com/98518
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ee58eccc

internal/bytealg: move compare functions to bytealg · f6332bb8

Keith Randall authored Mar 03, 2018

Move bytes.Compare and runtime·cmpstring to bytealg.

Update #19792

Change-Id: I139e6d7c59686bef7a3017e3dec99eba5fd10447
Reviewed-on: https://go-review.googlesource.com/98515
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f6332bb8

internal/bytealg: move Count to bytealg · 45964e4f

Keith Randall authored Mar 03, 2018

Move bytes.Count and strings.Count to bytealg.

Update #19792

Change-Id: I3e4e14b504a0b71758885bb131e5656e342cf8cb
Reviewed-on: https://go-review.googlesource.com/98495
Run-TryBot: Keith Randall <khr@golang.org>
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45964e4f

test: convert all math-related tests from asm_test · 89ae7045

Giovanni Bajo authored Mar 03, 2018

Change-Id: If542f0b5c5754e6eb2f9b302fe5a148ba9a57338
Reviewed-on: https://go-review.googlesource.com/98443
Run-TryBot: Giovanni Bajo <rasky@develer.com>
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Reviewed-by: Keith Randall <khr@golang.org>

89ae7045