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Commit Graph

38671 Commits

Author SHA1 Message Date
Lynn Boger
048580d341 cmd/asm,cmd/internal/obj/ppc64: add VPERMXOR to ppc64 assembler
VPERMXOR is missing from the Go assembler for ppc64. It has the
same format as VPERM. It was requested by an external user so
they could write an optimized algorithm in asm.

Change-Id: Icf4c682f7f46716ccae64e6ae3d62e8cec67f6c1
Reviewed-on: https://go-review.googlesource.com/c/151578
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Carlos Eduardo Seo <cseo@linux.vnet.ibm.com>
2018-11-28 21:49:33 +00:00
Meng Zhuo
9aadbf5755 net/http: prevent transport sends two "Connection: close" headers
There are three functions that do Connection header write:
1. transport.go/ persistConn.roundTrip
2. transfer.go/ transferWriter.writeHeader
3. request.go/ Request.write

The root cause is roundTrip didn't lookup into request.Close and
transferWriter
didn't take care of extraHeaders.

Fixes #28886

Change-Id: I1d131019c7cd42eb1bcc972c631b7df7511c1f39
Reviewed-on: https://go-review.googlesource.com/c/150722
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-28 21:33:21 +00:00
Keith Randall
4f15b54780 cmd/compile: ensure S390X moves don't overflow int32
Break ADDconst into ADD + MOVDconst, so that if the constant
is too big it won't overflow ADDconst's constant field.

For normal sizes, other rules will recombine into an ADDconst.

Fixes S390X breakage from CL 33909.

Change-Id: Id804ee052365527efb580f797688b0ce83c47915
Reviewed-on: https://go-review.googlesource.com/c/151597
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Michael Munday <mike.munday@ibm.com>
2018-11-28 21:17:40 +00:00
James Craig Burley
96d41786c5 doc: fix typo in FAQ
Change-Id: I956d6d1dbf8516cb65eb3a0686a3b0584b4a6840
GitHub-Last-Rev: 1c928f3c67
GitHub-Pull-Request: golang/go#28991
Reviewed-on: https://go-review.googlesource.com/c/151324
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-28 18:53:53 +00:00
Tobias Klauser
2d4bd3db7f plugin: fix build constraint to disable test on linux/arm64
CL 151478 was suppose to fix the build failure on linux/arm64 but the
build constraint didn't exclude linux/arm64 properly.

Fixes #28982

Change-Id: Ia80265b0adba0384cd28bc2deb1726418664975a
Reviewed-on: https://go-review.googlesource.com/c/151303
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
2018-11-28 18:14:20 +00:00
Josh Bleecher Snyder
bfc54bb6f3 math/big: allocate less for single-Word nats
For many uses of math/big, most numbers are small in practice.
Prior to this change, big.NewInt allocated a minimum of five Words:
one to hold the value, and four as extra capacity.
In most cases, this extra capacity is waste.
Worse, allocating a single Word uses a fast malloc path for tiny allocs;
allocating five Words is more expensive in CPU as well as memory.

This change is a simple fix: Treat a request for one Word at its word.
I experimented with more complicated fixes and did not find anything
that outperformed this easy fix.

On some real world programs, this is a clear win.

The compiler:

name        old alloc/op      new alloc/op      delta
Template         37.1MB ± 0%       37.0MB ± 0%  -0.23%  (p=0.008 n=5+5)
Unicode          29.2MB ± 0%       28.5MB ± 0%  -2.48%  (p=0.008 n=5+5)
GoTypes           133MB ± 0%        133MB ± 0%  -0.05%  (p=0.008 n=5+5)
Compiler          628MB ± 0%        628MB ± 0%  -0.06%  (p=0.008 n=5+5)
SSA              2.04GB ± 0%       2.03GB ± 0%  -0.14%  (p=0.008 n=5+5)
Flate            24.7MB ± 0%       24.6MB ± 0%  -0.23%  (p=0.008 n=5+5)
GoParser         29.6MB ± 0%       29.6MB ± 0%  -0.07%  (p=0.008 n=5+5)
Reflect          82.3MB ± 0%       82.2MB ± 0%  -0.05%  (p=0.008 n=5+5)
Tar              36.2MB ± 0%       36.2MB ± 0%  -0.12%  (p=0.008 n=5+5)
XML              49.5MB ± 0%       49.4MB ± 0%  -0.23%  (p=0.008 n=5+5)
[Geo mean]       85.1MB            84.8MB       -0.37%

name        old allocs/op     new allocs/op     delta
Template           364k ± 0%         364k ± 0%    ~     (p=0.476 n=5+5)
Unicode            341k ± 0%         341k ± 0%    ~     (p=0.690 n=5+5)
GoTypes           1.37M ± 0%        1.37M ± 0%    ~     (p=0.444 n=5+5)
Compiler          5.50M ± 0%        5.50M ± 0%  +0.02%  (p=0.008 n=5+5)
SSA               16.0M ± 0%        16.0M ± 0%  +0.01%  (p=0.008 n=5+5)
Flate              238k ± 0%         238k ± 0%    ~     (p=0.222 n=5+5)
GoParser           305k ± 0%         305k ± 0%    ~     (p=0.841 n=5+5)
Reflect            976k ± 0%         976k ± 0%    ~     (p=0.222 n=5+5)
Tar                354k ± 0%         354k ± 0%    ~     (p=0.103 n=5+5)
XML                450k ± 0%         450k ± 0%    ~     (p=0.151 n=5+5)
[Geo mean]         837k              837k       +0.01%

go.skylark.net (at ea6d2813de75ded8d157b9540bc3d3ad0b688623):

name                     old alloc/op   new alloc/op   delta
Hashtable-8                 456kB ± 0%     299kB ± 0%  -34.33%  (p=0.000 n=9+9)
/bench_builtin_method-8     220kB ± 0%     190kB ± 0%  -13.55%  (p=0.000 n=9+10)

name                     old allocs/op  new allocs/op  delta
Hashtable-8                 7.84k ± 0%     7.84k ± 0%     ~     (all equal)
/bench_builtin_method-8     7.49k ± 0%     7.49k ± 0%     ~     (all equal)

The math/big benchmarks are messy, which is predictable, since they
naturally exercise the bigger-than-one-word code more.
Also worth noting is that many of the benchmarks have very high variance.
I've omitted the opVV and opVW benchmarks, as they are unrelated.

name                              old time/op    new time/op    delta
DecimalConversion-8                 92.5µs ± 1%    90.6µs ± 0%   -2.12%  (p=0.000 n=17+19)
FloatString/100-8                    867ns ± 0%     871ns ± 0%   +0.50%  (p=0.000 n=18+18)
FloatString/1000-8                  26.4µs ± 1%    26.5µs ± 1%     ~     (p=0.396 n=20+19)
FloatString/10000-8                 2.15ms ± 2%    2.16ms ± 2%     ~     (p=0.089 n=19+20)
FloatString/100000-8                 209ms ± 1%     209ms ± 1%     ~     (p=0.583 n=19+19)
FloatAdd/10-8                       63.5ns ± 2%    64.1ns ± 6%     ~     (p=0.389 n=19+19)
FloatAdd/100-8                      66.0ns ± 2%    65.8ns ± 2%     ~     (p=0.825 n=20+20)
FloatAdd/1000-8                     93.9ns ± 1%    94.3ns ± 1%     ~     (p=0.273 n=19+20)
FloatAdd/10000-8                     347ns ± 2%     342ns ± 1%   -1.50%  (p=0.000 n=18+18)
FloatAdd/100000-8                   2.78µs ± 1%    2.78µs ± 2%     ~     (p=0.961 n=20+19)
FloatSub/10-8                       56.9ns ± 2%    57.8ns ± 3%   +1.59%  (p=0.001 n=19+19)
FloatSub/100-8                      58.2ns ± 2%    58.9ns ± 2%   +1.25%  (p=0.004 n=20+20)
FloatSub/1000-8                     74.9ns ± 1%    74.4ns ± 1%   -0.76%  (p=0.000 n=19+20)
FloatSub/10000-8                     223ns ± 1%     220ns ± 2%   -1.29%  (p=0.000 n=16+20)
FloatSub/100000-8                   1.66µs ± 1%    1.66µs ± 2%     ~     (p=0.147 n=20+20)
ParseFloatSmallExp-8                8.38µs ± 0%    8.59µs ± 0%   +2.48%  (p=0.000 n=19+19)
ParseFloatLargeExp-8                31.1µs ± 0%    32.0µs ± 0%   +3.04%  (p=0.000 n=16+17)
GCD10x10/WithoutXY-8                 115ns ± 1%      99ns ± 3%  -14.07%  (p=0.000 n=20+20)
GCD10x10/WithXY-8                    322ns ± 0%     312ns ± 0%   -3.11%  (p=0.000 n=18+13)
GCD10x100/WithoutXY-8                233ns ± 1%     219ns ± 1%   -5.73%  (p=0.000 n=19+17)
GCD10x100/WithXY-8                   709ns ± 0%     759ns ± 0%   +7.04%  (p=0.000 n=19+19)
GCD10x1000/WithoutXY-8               653ns ± 1%     642ns ± 1%   -1.69%  (p=0.000 n=17+20)
GCD10x1000/WithXY-8                 1.35µs ± 0%    1.35µs ± 1%     ~     (p=0.255 n=20+16)
GCD10x10000/WithoutXY-8             4.57µs ± 1%    4.61µs ± 1%   +0.95%  (p=0.000 n=18+17)
GCD10x10000/WithXY-8                6.82µs ± 0%    6.84µs ± 0%   +0.27%  (p=0.000 n=16+17)
GCD10x100000/WithoutXY-8            43.9µs ± 1%    44.0µs ± 1%   +0.28%  (p=0.000 n=18+17)
GCD10x100000/WithXY-8               60.6µs ± 0%    60.6µs ± 0%     ~     (p=0.907 n=18+18)
GCD100x100/WithoutXY-8              1.13µs ± 0%    1.21µs ± 0%   +6.39%  (p=0.000 n=19+19)
GCD100x100/WithXY-8                 1.82µs ± 0%    1.92µs ± 0%   +5.24%  (p=0.000 n=19+17)
GCD100x1000/WithoutXY-8             2.00µs ± 0%    2.03µs ± 1%   +1.61%  (p=0.000 n=18+16)
GCD100x1000/WithXY-8                3.22µs ± 0%    3.20µs ± 1%   -0.83%  (p=0.000 n=19+19)
GCD100x10000/WithoutXY-8            9.28µs ± 1%    9.17µs ± 1%   -1.25%  (p=0.000 n=18+19)
GCD100x10000/WithXY-8               13.5µs ± 0%    13.3µs ± 0%   -1.12%  (p=0.000 n=18+19)
GCD100x100000/WithoutXY-8           80.4µs ± 0%    78.6µs ± 0%   -2.25%  (p=0.000 n=19+19)
GCD100x100000/WithXY-8               114µs ± 0%     112µs ± 0%   -1.46%  (p=0.000 n=19+17)
GCD1000x1000/WithoutXY-8            12.9µs ± 1%    12.9µs ± 2%   -0.50%  (p=0.014 n=20+19)
GCD1000x1000/WithXY-8               19.6µs ± 1%    19.6µs ± 2%   -0.28%  (p=0.040 n=17+18)
GCD1000x10000/WithoutXY-8           22.4µs ± 0%    22.4µs ± 2%     ~     (p=0.220 n=19+19)
GCD1000x10000/WithXY-8              57.0µs ± 0%    56.5µs ± 0%   -0.87%  (p=0.000 n=20+20)
GCD1000x100000/WithoutXY-8           116µs ± 0%     115µs ± 0%   -0.49%  (p=0.000 n=18+19)
GCD1000x100000/WithXY-8              410µs ± 0%     411µs ± 0%     ~     (p=0.052 n=19+19)
GCD10000x10000/WithoutXY-8           247µs ± 1%     244µs ± 1%   -0.92%  (p=0.000 n=19+19)
GCD10000x10000/WithXY-8              476µs ± 1%     473µs ± 1%   -0.48%  (p=0.009 n=19+19)
GCD10000x100000/WithoutXY-8          573µs ± 1%     571µs ± 1%   -0.45%  (p=0.012 n=20+20)
GCD10000x100000/WithXY-8            3.35ms ± 1%    3.35ms ± 1%     ~     (p=0.444 n=20+19)
GCD100000x100000/WithoutXY-8        12.0ms ± 2%    11.9ms ± 2%     ~     (p=0.276 n=18+20)
GCD100000x100000/WithXY-8           27.3ms ± 1%    27.3ms ± 1%     ~     (p=0.792 n=20+19)
Hilbert-8                            672µs ± 0%     611µs ± 0%   -9.02%  (p=0.000 n=19+19)
Binomial-8                          1.40µs ± 0%    1.18µs ± 0%  -15.69%  (p=0.000 n=16+14)
QuoRem-8                            2.20µs ± 1%    2.17µs ± 1%   -1.13%  (p=0.000 n=19+19)
Exp-8                               4.10ms ± 1%    4.11ms ± 1%     ~     (p=0.296 n=20+19)
Exp2-8                              4.11ms ± 1%    4.12ms ± 1%     ~     (p=0.429 n=20+20)
Bitset-8                            8.67ns ± 6%    8.74ns ± 4%     ~     (p=0.139 n=19+17)
BitsetNeg-8                         43.6ns ± 1%    43.8ns ± 2%   +0.61%  (p=0.036 n=20+20)
BitsetOrig-8                        77.5ns ± 1%    68.4ns ± 1%  -11.77%  (p=0.000 n=19+20)
BitsetNegOrig-8                      145ns ± 1%     141ns ± 1%   -2.87%  (p=0.000 n=19+20)
ModSqrt225_Tonelli-8                 324µs ± 1%     324µs ± 1%     ~     (p=0.409 n=18+20)
ModSqrt225_3Mod4-8                  98.9µs ± 1%    99.1µs ± 1%     ~     (p=0.298 n=19+18)
ModSqrt231_Tonelli-8                 337µs ± 1%     337µs ± 1%     ~     (p=0.718 n=20+18)
ModSqrt231_5Mod8-8                   115µs ± 1%     114µs ± 1%   -0.22%  (p=0.050 n=20+20)
ModInverse-8                         895ns ± 0%     869ns ± 1%   -2.83%  (p=0.000 n=17+17)
Sqrt-8                              28.1µs ± 1%    28.1µs ± 0%   -0.28%  (p=0.000 n=16+20)
IntSqr/1-8                          10.8ns ± 3%    10.5ns ± 3%   -2.51%  (p=0.000 n=19+17)
IntSqr/2-8                          30.5ns ± 2%    30.3ns ± 4%   -0.71%  (p=0.035 n=18+18)
IntSqr/3-8                          40.1ns ± 1%    40.1ns ± 1%     ~     (p=0.710 n=20+17)
IntSqr/5-8                          65.3ns ± 1%    65.4ns ± 2%     ~     (p=0.744 n=19+19)
IntSqr/8-8                           101ns ± 1%     102ns ± 0%     ~     (p=0.234 n=19+20)
IntSqr/10-8                          138ns ± 0%     138ns ± 2%     ~     (p=0.827 n=18+18)
IntSqr/20-8                          378ns ± 1%     378ns ± 1%     ~     (p=0.479 n=18+18)
IntSqr/30-8                          637ns ± 0%     638ns ± 1%     ~     (p=0.051 n=18+20)
IntSqr/50-8                         1.34µs ± 2%    1.34µs ± 1%     ~     (p=0.970 n=18+19)
IntSqr/80-8                         2.78µs ± 0%    2.78µs ± 1%   -0.18%  (p=0.006 n=19+17)
IntSqr/100-8                        3.98µs ± 0%    3.98µs ± 0%     ~     (p=0.057 n=17+19)
IntSqr/200-8                        13.5µs ± 0%    13.5µs ± 1%   -0.33%  (p=0.000 n=19+17)
IntSqr/300-8                        25.3µs ± 1%    25.3µs ± 1%     ~     (p=0.361 n=19+20)
IntSqr/500-8                        62.9µs ± 0%    62.9µs ± 1%     ~     (p=0.899 n=17+17)
IntSqr/800-8                         128µs ± 1%     127µs ± 1%   -0.32%  (p=0.016 n=18+20)
IntSqr/1000-8                        192µs ± 0%     192µs ± 1%     ~     (p=0.916 n=17+18)
Div/20/10-8                         34.9ns ± 2%    35.6ns ± 1%   +2.01%  (p=0.000 n=20+20)
Div/200/100-8                        218ns ± 1%     215ns ± 2%   -1.43%  (p=0.000 n=18+18)
Div/2000/1000-8                     1.16µs ± 1%    1.15µs ± 1%   -1.04%  (p=0.000 n=19+20)
Div/20000/10000-8                   35.7µs ± 1%    35.4µs ± 1%   -0.69%  (p=0.000 n=19+18)
Div/200000/100000-8                 2.89ms ± 1%    2.88ms ± 1%   -0.62%  (p=0.007 n=19+20)
Mul-8                               9.28ms ± 1%    9.27ms ± 1%     ~     (p=0.563 n=18+18)
ZeroShifts/Shl-8                     712ns ± 6%     716ns ± 7%     ~     (p=0.597 n=20+20)
ZeroShifts/ShlSame-8                4.00ns ± 1%    4.06ns ± 5%     ~     (p=0.162 n=18+20)
ZeroShifts/Shr-8                     714ns ±10%   1285ns ±156%     ~     (p=0.250 n=20+20)
ZeroShifts/ShrSame-8                4.00ns ± 1%    4.09ns ±10%   +2.34%  (p=0.048 n=16+19)
Exp3Power/0x10-8                     154ns ± 0%     159ns ±13%     ~     (p=0.197 n=14+20)
Exp3Power/0x40-8                     171ns ± 1%     175ns ± 8%     ~     (p=0.058 n=16+19)
Exp3Power/0x100-8                    287ns ± 0%     316ns ± 4%  +10.03%  (p=0.000 n=17+19)
Exp3Power/0x400-8                    698ns ± 1%     801ns ± 6%  +14.75%  (p=0.000 n=19+20)
Exp3Power/0x1000-8                  2.87µs ± 0%    3.65µs ± 6%  +27.24%  (p=0.000 n=18+18)
Exp3Power/0x4000-8                  21.9µs ± 1%    28.7µs ± 8%  +31.09%  (p=0.000 n=18+20)
Exp3Power/0x10000-8                  204µs ± 0%     267µs ± 9%  +30.81%  (p=0.000 n=20+20)
Exp3Power/0x40000-8                 1.86ms ± 0%    2.26ms ± 5%  +21.68%  (p=0.000 n=18+19)
Exp3Power/0x100000-8                17.5ms ± 1%    20.7ms ± 7%  +18.39%  (p=0.000 n=19+20)
Exp3Power/0x400000-8                 156ms ± 0%     172ms ± 6%  +10.54%  (p=0.000 n=19+20)
Fibo-8                              26.9ms ± 1%    27.5ms ± 3%   +2.32%  (p=0.000 n=19+19)
NatSqr/1-8                          31.0ns ± 4%    39.5ns ±29%  +27.25%  (p=0.000 n=20+19)
NatSqr/2-8                          54.1ns ± 1%    69.0ns ±28%  +27.52%  (p=0.000 n=20+20)
NatSqr/3-8                          66.6ns ± 1%    83.0ns ±25%  +24.59%  (p=0.000 n=20+20)
NatSqr/5-8                          97.1ns ± 1%   119.9ns ±12%  +23.50%  (p=0.000 n=16+20)
NatSqr/8-8                           138ns ± 1%     171ns ± 9%  +24.20%  (p=0.000 n=19+20)
NatSqr/10-8                          182ns ± 0%     225ns ± 9%  +23.50%  (p=0.000 n=16+20)
NatSqr/20-8                          447ns ± 1%     624ns ± 6%  +39.64%  (p=0.000 n=19+19)
NatSqr/30-8                          736ns ± 2%     986ns ± 9%  +33.94%  (p=0.000 n=19+20)
NatSqr/50-8                         1.51µs ± 2%    1.97µs ± 9%  +30.42%  (p=0.000 n=20+20)
NatSqr/80-8                         3.03µs ± 1%    3.67µs ± 7%  +21.08%  (p=0.000 n=20+20)
NatSqr/100-8                        4.31µs ± 1%    5.20µs ± 7%  +20.52%  (p=0.000 n=19+20)
NatSqr/200-8                        14.2µs ± 0%    16.3µs ± 4%  +14.92%  (p=0.000 n=19+20)
NatSqr/300-8                        27.8µs ± 1%    33.2µs ± 7%  +19.28%  (p=0.000 n=20+18)
NatSqr/500-8                        66.6µs ± 1%    74.5µs ± 3%  +11.87%  (p=0.000 n=18+18)
NatSqr/800-8                         135µs ± 1%     165µs ± 7%  +22.33%  (p=0.000 n=20+20)
NatSqr/1000-8                        200µs ± 0%     228µs ± 3%  +14.39%  (p=0.000 n=19+20)
NatSetBytes/8-8                     8.87ns ± 4%    8.77ns ± 2%   -1.17%  (p=0.020 n=20+16)
NatSetBytes/24-8                    38.6ns ± 3%    49.5ns ±29%  +28.32%  (p=0.000 n=18+19)
NatSetBytes/128-8                   75.2ns ± 1%   120.7ns ±29%  +60.60%  (p=0.000 n=17+20)
NatSetBytes/7-8                     16.2ns ± 2%    16.5ns ± 2%   +1.76%  (p=0.000 n=20+20)
NatSetBytes/23-8                    46.5ns ± 1%    60.2ns ±24%  +29.59%  (p=0.000 n=20+20)
NatSetBytes/127-8                   83.1ns ± 1%   118.2ns ±20%  +42.33%  (p=0.000 n=18+20)
ScanPi-8                            89.1µs ± 1%   117.4µs ±12%  +31.75%  (p=0.000 n=18+20)
StringPiParallel-8                  35.1µs ± 9%    40.2µs ±12%  +14.53%  (p=0.000 n=20+20)
Scan/10/Base2-8                      410ns ±14%     429ns ±10%   +4.47%  (p=0.018 n=19+20)
Scan/100/Base2-8                    3.05µs ±20%    2.97µs ±14%     ~     (p=0.449 n=20+20)
Scan/1000/Base2-8                   29.3µs ± 8%    30.1µs ±23%     ~     (p=0.355 n=20+20)
Scan/10000/Base2-8                   402µs ±13%     395µs ±14%     ~     (p=0.355 n=20+20)
Scan/100000/Base2-8                 11.8ms ±10%    11.6ms ± 1%     ~     (p=0.245 n=17+18)
Scan/10/Base8-8                      194ns ± 6%     196ns ±12%     ~     (p=0.829 n=20+19)
Scan/100/Base8-8                    1.11µs ±15%    1.11µs ±12%     ~     (p=0.743 n=20+20)
Scan/1000/Base8-8                   11.7µs ±10%    11.7µs ±12%     ~     (p=0.904 n=20+20)
Scan/10000/Base8-8                   209µs ± 7%     210µs ± 8%     ~     (p=0.478 n=20+20)
Scan/100000/Base8-8                 10.6ms ± 7%    10.4ms ± 6%     ~     (p=0.112 n=20+18)
Scan/10/Base10-8                     182ns ±12%     188ns ±11%   +3.52%  (p=0.044 n=20+20)
Scan/100/Base10-8                   1.01µs ± 8%    1.00µs ±13%     ~     (p=0.588 n=20+20)
Scan/1000/Base10-8                  10.7µs ±20%    10.6µs ±14%     ~     (p=0.560 n=20+20)
Scan/10000/Base10-8                  195µs ±10%     194µs ± 9%     ~     (p=0.883 n=20+20)
Scan/100000/Base10-8                10.6ms ± 2%    10.6ms ± 2%     ~     (p=0.495 n=20+20)
Scan/10/Base16-8                     166ns ±10%     174ns ±17%     ~     (p=0.072 n=20+20)
Scan/100/Base16-8                    836ns ±10%     826ns ±12%     ~     (p=0.562 n=20+17)
Scan/1000/Base16-8                  8.96µs ±13%    8.65µs ± 9%     ~     (p=0.203 n=20+18)
Scan/10000/Base16-8                  198µs ± 3%     198µs ± 5%     ~     (p=0.718 n=20+20)
Scan/100000/Base16-8                11.1ms ± 3%    11.0ms ± 4%     ~     (p=0.512 n=20+20)
String/10/Base2-8                   88.1ns ± 7%    94.1ns ±11%   +6.80%  (p=0.000 n=19+20)
String/100/Base2-8                   577ns ± 4%     598ns ± 5%   +3.72%  (p=0.000 n=20+20)
String/1000/Base2-8                 5.25µs ± 2%    5.62µs ± 5%   +7.04%  (p=0.000 n=19+20)
String/10000/Base2-8                55.6µs ± 1%    60.1µs ± 2%   +8.12%  (p=0.000 n=19+19)
String/100000/Base2-8                519µs ± 2%     560µs ± 2%   +7.91%  (p=0.000 n=18+17)
String/10/Base8-8                   52.2ns ± 8%    53.3ns ±12%     ~     (p=0.188 n=20+18)
String/100/Base8-8                   218ns ± 3%     232ns ±10%   +6.66%  (p=0.000 n=20+20)
String/1000/Base8-8                 1.84µs ± 3%    1.94µs ± 4%   +5.07%  (p=0.000 n=20+18)
String/10000/Base8-8                18.1µs ± 2%    19.1µs ± 3%   +5.84%  (p=0.000 n=20+19)
String/100000/Base8-8                184µs ± 2%     197µs ± 1%   +7.15%  (p=0.000 n=19+19)
String/10/Base10-8                   158ns ± 7%     146ns ± 6%   -7.65%  (p=0.000 n=20+19)
String/100/Base10-8                  807ns ± 2%     845ns ± 4%   +4.79%  (p=0.000 n=20+19)
String/1000/Base10-8                3.99µs ± 3%    3.99µs ± 7%     ~     (p=0.920 n=20+20)
String/10000/Base10-8               20.8µs ± 6%    22.1µs ±10%   +6.11%  (p=0.000 n=19+20)
String/100000/Base10-8              5.60ms ± 2%    5.59ms ± 2%     ~     (p=0.749 n=20+19)
String/10/Base16-8                  49.0ns ±13%    49.3ns ±16%     ~     (p=0.581 n=19+20)
String/100/Base16-8                  173ns ± 5%     185ns ± 6%   +6.63%  (p=0.000 n=20+18)
String/1000/Base16-8                1.38µs ± 3%    1.49µs ±10%   +8.27%  (p=0.000 n=19+20)
String/10000/Base16-8               13.5µs ± 2%    14.5µs ± 3%   +7.08%  (p=0.000 n=20+20)
String/100000/Base16-8               138µs ± 4%     148µs ± 4%   +7.57%  (p=0.000 n=19+20)
LeafSize/0-8                        2.74ms ± 1%    2.79ms ± 2%   +2.00%  (p=0.000 n=19+19)
LeafSize/1-8                        24.8µs ± 4%    26.1µs ± 8%   +5.33%  (p=0.000 n=18+19)
LeafSize/2-8                        24.9µs ± 7%    25.0µs ± 8%     ~     (p=0.989 n=20+19)
LeafSize/3-8                        97.6µs ± 3%   100.2µs ± 5%   +2.66%  (p=0.001 n=20+19)
LeafSize/4-8                        25.2µs ± 5%    25.4µs ± 5%     ~     (p=0.173 n=19+20)
LeafSize/5-8                         118µs ± 2%     119µs ± 5%     ~     (p=0.478 n=20+20)
LeafSize/6-8                        97.6µs ± 3%   100.1µs ± 8%   +2.65%  (p=0.021 n=20+19)
LeafSize/7-8                        65.6µs ± 5%    67.5µs ± 6%   +2.92%  (p=0.003 n=20+19)
LeafSize/8-8                        25.5µs ± 5%    25.6µs ± 6%     ~     (p=0.461 n=19+20)
LeafSize/9-8                         134µs ± 4%     136µs ± 5%     ~     (p=0.194 n=19+20)
LeafSize/10-8                        119µs ± 3%     122µs ± 3%   +2.52%  (p=0.000 n=20+19)
LeafSize/11-8                        115µs ± 5%     116µs ± 5%     ~     (p=0.158 n=20+19)
LeafSize/12-8                       97.4µs ± 4%   100.3µs ± 5%   +2.91%  (p=0.003 n=19+20)
LeafSize/13-8                       93.1µs ± 4%    93.0µs ± 6%     ~     (p=0.698 n=20+20)
LeafSize/14-8                       67.0µs ± 3%    69.7µs ± 6%   +4.10%  (p=0.000 n=20+20)
LeafSize/15-8                       48.3µs ± 2%    49.3µs ± 6%   +1.91%  (p=0.014 n=19+20)
LeafSize/16-8                       25.6µs ± 5%    25.6µs ± 6%     ~     (p=0.947 n=20+20)
LeafSize/32-8                       30.1µs ± 4%    30.3µs ± 5%     ~     (p=0.685 n=18+19)
LeafSize/64-8                       53.4µs ± 2%    54.0µs ± 3%     ~     (p=0.053 n=19+19)
ProbablyPrime/n=0-8                 3.59ms ± 1%    3.55ms ± 1%   -1.12%  (p=0.000 n=20+18)
ProbablyPrime/n=1-8                 4.21ms ± 2%    4.17ms ± 2%   -0.73%  (p=0.018 n=20+19)
ProbablyPrime/n=5-8                 6.74ms ± 1%    6.72ms ± 1%     ~     (p=0.102 n=20+20)
ProbablyPrime/n=10-8                9.91ms ± 1%    9.89ms ± 2%     ~     (p=0.322 n=19+20)
ProbablyPrime/n=20-8                16.2ms ± 1%    16.1ms ± 2%   -0.52%  (p=0.006 n=19+19)
ProbablyPrime/Lucas-8               2.94ms ± 1%    2.95ms ± 1%   +0.52%  (p=0.002 n=18+19)
ProbablyPrime/MillerRabinBase2-8     641µs ± 2%     640µs ± 2%     ~     (p=0.607 n=19+20)
FloatSqrt/64-8                       653ns ± 5%     704ns ± 5%   +7.82%  (p=0.000 n=19+20)
FloatSqrt/128-8                     1.32µs ± 3%    1.42µs ± 5%   +7.29%  (p=0.000 n=18+20)
FloatSqrt/256-8                     1.44µs ± 2%    1.45µs ± 4%     ~     (p=0.089 n=19+19)
FloatSqrt/1000-8                    3.36µs ± 3%    3.42µs ± 5%   +1.82%  (p=0.012 n=20+20)
FloatSqrt/10000-8                   25.5µs ± 2%    27.5µs ± 7%   +7.91%  (p=0.000 n=18+19)
FloatSqrt/100000-8                   629µs ± 6%     663µs ± 9%   +5.32%  (p=0.000 n=18+20)
FloatSqrt/1000000-8                 46.4ms ± 2%    46.6ms ± 5%     ~     (p=0.351 n=20+19)
[Geo mean]                          9.60µs        10.01µs        +4.28%

name                              old alloc/op   new alloc/op   delta
DecimalConversion-8                 54.0kB ± 0%    43.6kB ± 0%  -19.40%  (p=0.000 n=20+20)
FloatString/100-8                     400B ± 0%      400B ± 0%     ~     (all equal)
FloatString/1000-8                  3.10kB ± 0%    3.10kB ± 0%     ~     (all equal)
FloatString/10000-8                 52.1kB ± 0%    52.1kB ± 0%     ~     (p=0.153 n=20+20)
FloatString/100000-8                 582kB ± 0%     582kB ± 0%     ~     (all equal)
FloatAdd/10-8                        0.00B          0.00B          ~     (all equal)
FloatAdd/100-8                       0.00B          0.00B          ~     (all equal)
FloatAdd/1000-8                      0.00B          0.00B          ~     (all equal)
FloatAdd/10000-8                     0.00B          0.00B          ~     (all equal)
FloatAdd/100000-8                    0.00B          0.00B          ~     (all equal)
FloatSub/10-8                        0.00B          0.00B          ~     (all equal)
FloatSub/100-8                       0.00B          0.00B          ~     (all equal)
FloatSub/1000-8                      0.00B          0.00B          ~     (all equal)
FloatSub/10000-8                     0.00B          0.00B          ~     (all equal)
FloatSub/100000-8                    0.00B          0.00B          ~     (all equal)
ParseFloatSmallExp-8                4.18kB ± 0%    3.60kB ± 0%  -13.79%  (p=0.000 n=20+20)
ParseFloatLargeExp-8                18.9kB ± 0%    19.3kB ± 0%   +2.25%  (p=0.000 n=20+20)
GCD10x10/WithoutXY-8                 96.0B ± 0%     16.0B ± 0%  -83.33%  (p=0.000 n=20+20)
GCD10x10/WithXY-8                     240B ± 0%       88B ± 0%  -63.33%  (p=0.000 n=20+20)
GCD10x100/WithoutXY-8                 192B ± 0%      112B ± 0%  -41.67%  (p=0.000 n=20+20)
GCD10x100/WithXY-8                    464B ± 0%      424B ± 0%   -8.62%  (p=0.000 n=20+20)
GCD10x1000/WithoutXY-8                416B ± 0%      336B ± 0%  -19.23%  (p=0.000 n=20+20)
GCD10x1000/WithXY-8                 1.25kB ± 0%    1.10kB ± 0%  -12.18%  (p=0.000 n=20+20)
GCD10x10000/WithoutXY-8             2.91kB ± 0%    2.83kB ± 0%   -2.75%  (p=0.000 n=20+20)
GCD10x10000/WithXY-8                8.70kB ± 0%    8.55kB ± 0%   -1.76%  (p=0.000 n=16+16)
GCD10x100000/WithoutXY-8            27.2kB ± 0%    27.2kB ± 0%   -0.29%  (p=0.000 n=20+20)
GCD10x100000/WithXY-8               82.4kB ± 0%    82.3kB ± 0%   -0.17%  (p=0.000 n=20+19)
GCD100x100/WithoutXY-8                288B ± 0%      384B ± 0%  +33.33%  (p=0.000 n=20+20)
GCD100x100/WithXY-8                   464B ± 0%      576B ± 0%  +24.14%  (p=0.000 n=20+20)
GCD100x1000/WithoutXY-8               640B ± 0%      688B ± 0%   +7.50%  (p=0.000 n=20+20)
GCD100x1000/WithXY-8                1.52kB ± 0%    1.46kB ± 0%   -3.68%  (p=0.000 n=20+20)
GCD100x10000/WithoutXY-8            4.24kB ± 0%    4.29kB ± 0%   +1.13%  (p=0.000 n=20+20)
GCD100x10000/WithXY-8               11.1kB ± 0%    11.0kB ± 0%   -0.51%  (p=0.000 n=15+20)
GCD100x100000/WithoutXY-8           40.9kB ± 0%    40.9kB ± 0%   +0.12%  (p=0.000 n=20+19)
GCD100x100000/WithXY-8               110kB ± 0%     109kB ± 0%   -0.08%  (p=0.000 n=20+20)
GCD1000x1000/WithoutXY-8            1.22kB ± 0%    1.06kB ± 0%  -13.16%  (p=0.000 n=20+20)
GCD1000x1000/WithXY-8               2.37kB ± 0%    2.11kB ± 0%  -10.83%  (p=0.000 n=20+20)
GCD1000x10000/WithoutXY-8           4.71kB ± 0%    4.63kB ± 0%   -1.70%  (p=0.000 n=20+19)
GCD1000x10000/WithXY-8              28.2kB ± 0%    28.0kB ± 0%   -0.43%  (p=0.000 n=20+15)
GCD1000x100000/WithoutXY-8          41.3kB ± 0%    41.2kB ± 0%   -0.20%  (p=0.000 n=20+16)
GCD1000x100000/WithXY-8              301kB ± 0%     301kB ± 0%   -0.13%  (p=0.000 n=20+20)
GCD10000x10000/WithoutXY-8          8.64kB ± 0%    8.48kB ± 0%   -1.85%  (p=0.000 n=20+20)
GCD10000x10000/WithXY-8             57.2kB ± 0%    57.7kB ± 0%   +0.80%  (p=0.000 n=20+20)
GCD10000x100000/WithoutXY-8         43.8kB ± 0%    43.7kB ± 0%   -0.19%  (p=0.000 n=20+18)
GCD10000x100000/WithXY-8            2.08MB ± 0%    2.08MB ± 0%   -0.02%  (p=0.000 n=15+19)
GCD100000x100000/WithoutXY-8        81.6kB ± 0%    81.4kB ± 0%   -0.20%  (p=0.000 n=20+20)
GCD100000x100000/WithXY-8           4.32MB ± 0%    4.33MB ± 0%   +0.12%  (p=0.000 n=20+20)
Hilbert-8                            653kB ± 0%     313kB ± 0%  -52.13%  (p=0.000 n=19+20)
Binomial-8                          1.82kB ± 0%    1.02kB ± 0%  -43.86%  (p=0.000 n=20+20)
QuoRem-8                             0.00B          0.00B          ~     (all equal)
Exp-8                               11.1kB ± 0%    11.0kB ± 0%   -0.34%  (p=0.000 n=19+20)
Exp2-8                              11.3kB ± 0%    11.3kB ± 0%   -0.35%  (p=0.000 n=19+20)
Bitset-8                             0.00B          0.00B          ~     (all equal)
BitsetNeg-8                          0.00B          0.00B          ~     (all equal)
BitsetOrig-8                          103B ± 0%       63B ± 0%  -38.83%  (p=0.000 n=20+20)
BitsetNegOrig-8                       215B ± 0%      175B ± 0%  -18.60%  (p=0.000 n=20+20)
ModSqrt225_Tonelli-8                11.3kB ± 0%    11.0kB ± 0%   -2.76%  (p=0.000 n=20+17)
ModSqrt225_3Mod4-8                  3.57kB ± 0%    3.53kB ± 0%   -1.12%  (p=0.000 n=20+20)
ModSqrt231_Tonelli-8                11.0kB ± 0%    10.7kB ± 0%   -2.55%  (p=0.000 n=20+20)
ModSqrt231_5Mod8-8                  4.21kB ± 0%    4.09kB ± 0%   -2.85%  (p=0.000 n=16+20)
ModInverse-8                        1.44kB ± 0%    1.28kB ± 0%  -11.11%  (p=0.000 n=20+20)
Sqrt-8                              6.00kB ± 0%    6.00kB ± 0%     ~     (all equal)
IntSqr/1-8                           0.00B          0.00B          ~     (all equal)
IntSqr/2-8                           0.00B          0.00B          ~     (all equal)
IntSqr/3-8                           0.00B          0.00B          ~     (all equal)
IntSqr/5-8                           0.00B          0.00B          ~     (all equal)
IntSqr/8-8                           0.00B          0.00B          ~     (all equal)
IntSqr/10-8                          0.00B          0.00B          ~     (all equal)
IntSqr/20-8                           320B ± 0%      320B ± 0%     ~     (all equal)
IntSqr/30-8                           480B ± 0%      480B ± 0%     ~     (all equal)
IntSqr/50-8                           896B ± 0%      896B ± 0%     ~     (all equal)
IntSqr/80-8                         1.28kB ± 0%    1.28kB ± 0%     ~     (all equal)
IntSqr/100-8                        1.79kB ± 0%    1.79kB ± 0%     ~     (all equal)
IntSqr/200-8                        3.20kB ± 0%    3.20kB ± 0%     ~     (all equal)
IntSqr/300-8                        8.06kB ± 0%    8.06kB ± 0%     ~     (all equal)
IntSqr/500-8                        12.3kB ± 0%    12.3kB ± 0%     ~     (all equal)
IntSqr/800-8                        28.8kB ± 0%    28.8kB ± 0%     ~     (all equal)
IntSqr/1000-8                       36.9kB ± 0%    36.9kB ± 0%     ~     (all equal)
Div/20/10-8                          0.00B          0.00B          ~     (all equal)
Div/200/100-8                        0.00B          0.00B          ~     (all equal)
Div/2000/1000-8                      0.00B          0.00B          ~     (all equal)
Div/20000/10000-8                    0.00B          0.00B          ~     (all equal)
Div/200000/100000-8                   690B ± 0%      690B ± 0%     ~     (all equal)
Mul-8                                565kB ± 0%     565kB ± 0%     ~     (all equal)
ZeroShifts/Shl-8                    6.53kB ± 0%    6.53kB ± 0%     ~     (all equal)
ZeroShifts/ShlSame-8                 0.00B          0.00B          ~     (all equal)
ZeroShifts/Shr-8                    6.53kB ± 0%    6.53kB ± 0%     ~     (all equal)
ZeroShifts/ShrSame-8                 0.00B          0.00B          ~     (all equal)
Exp3Power/0x10-8                      192B ± 0%      112B ± 0%  -41.67%  (p=0.000 n=20+20)
Exp3Power/0x40-8                      192B ± 0%      112B ± 0%  -41.67%  (p=0.000 n=20+20)
Exp3Power/0x100-8                     288B ± 0%      208B ± 0%  -27.78%  (p=0.000 n=20+20)
Exp3Power/0x400-8                     672B ± 0%      592B ± 0%  -11.90%  (p=0.000 n=20+20)
Exp3Power/0x1000-8                  3.33kB ± 0%    3.25kB ± 0%   -2.40%  (p=0.000 n=20+20)
Exp3Power/0x4000-8                  13.8kB ± 0%    13.7kB ± 0%   -0.58%  (p=0.000 n=20+20)
Exp3Power/0x10000-8                  117kB ± 0%     117kB ± 0%   -0.07%  (p=0.000 n=20+20)
Exp3Power/0x40000-8                  755kB ± 0%     755kB ± 0%   -0.01%  (p=0.000 n=19+20)
Exp3Power/0x100000-8                5.22MB ± 0%    5.22MB ± 0%   -0.00%  (p=0.000 n=20+20)
Exp3Power/0x400000-8                39.8MB ± 0%    39.8MB ± 0%   -0.00%  (p=0.000 n=20+19)
Fibo-8                              3.09MB ± 0%    3.08MB ± 0%   -0.28%  (p=0.000 n=20+16)
NatSqr/1-8                           48.0B ± 0%     48.0B ± 0%     ~     (all equal)
NatSqr/2-8                           64.0B ± 0%     64.0B ± 0%     ~     (all equal)
NatSqr/3-8                           80.0B ± 0%     80.0B ± 0%     ~     (all equal)
NatSqr/5-8                            112B ± 0%      112B ± 0%     ~     (all equal)
NatSqr/8-8                            160B ± 0%      160B ± 0%     ~     (all equal)
NatSqr/10-8                           192B ± 0%      192B ± 0%     ~     (all equal)
NatSqr/20-8                           672B ± 0%      672B ± 0%     ~     (all equal)
NatSqr/30-8                           992B ± 0%      992B ± 0%     ~     (all equal)
NatSqr/50-8                         1.79kB ± 0%    1.79kB ± 0%     ~     (all equal)
NatSqr/80-8                         2.69kB ± 0%    2.69kB ± 0%     ~     (all equal)
NatSqr/100-8                        3.58kB ± 0%    3.58kB ± 0%     ~     (all equal)
NatSqr/200-8                        6.66kB ± 0%    6.66kB ± 0%     ~     (all equal)
NatSqr/300-8                        24.4kB ± 0%    24.4kB ± 0%     ~     (all equal)
NatSqr/500-8                        36.9kB ± 0%    36.9kB ± 0%     ~     (all equal)
NatSqr/800-8                        69.8kB ± 0%    69.8kB ± 0%     ~     (all equal)
NatSqr/1000-8                       86.0kB ± 0%    86.0kB ± 0%     ~     (all equal)
NatSetBytes/8-8                      0.00B          0.00B          ~     (all equal)
NatSetBytes/24-8                     64.0B ± 0%     64.0B ± 0%     ~     (all equal)
NatSetBytes/128-8                     160B ± 0%      160B ± 0%     ~     (all equal)
NatSetBytes/7-8                      0.00B          0.00B          ~     (all equal)
NatSetBytes/23-8                     64.0B ± 0%     64.0B ± 0%     ~     (all equal)
NatSetBytes/127-8                     160B ± 0%      160B ± 0%     ~     (all equal)
ScanPi-8                            75.4kB ± 0%    75.7kB ± 0%   +0.41%  (p=0.000 n=20+20)
StringPiParallel-8                  20.4kB ± 0%    20.4kB ± 0%     ~     (p=0.223 n=20+20)
Scan/10/Base2-8                      48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/100/Base2-8                     48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/1000/Base2-8                    48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/10000/Base2-8                   48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/100000/Base2-8                  48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/10/Base8-8                      48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/100/Base8-8                     48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/1000/Base8-8                    48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/10000/Base8-8                   48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/100000/Base8-8                  48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/10/Base10-8                     48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/100/Base10-8                    48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/1000/Base10-8                   48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/10000/Base10-8                  48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/100000/Base10-8                 48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/10/Base16-8                     48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/100/Base16-8                    48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/1000/Base16-8                   48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/10000/Base16-8                  48.0B ± 0%     48.0B ± 0%     ~     (all equal)
Scan/100000/Base16-8                 48.0B ± 0%     48.0B ± 0%     ~     (all equal)
String/10/Base2-8                    48.0B ± 0%     48.0B ± 0%     ~     (all equal)
String/100/Base2-8                    352B ± 0%      352B ± 0%     ~     (all equal)
String/1000/Base2-8                 3.46kB ± 0%    3.46kB ± 0%     ~     (all equal)
String/10000/Base2-8                41.0kB ± 0%    41.0kB ± 0%     ~     (all equal)
String/100000/Base2-8                336kB ± 0%     336kB ± 0%     ~     (all equal)
String/10/Base8-8                    16.0B ± 0%     16.0B ± 0%     ~     (all equal)
String/100/Base8-8                    112B ± 0%      112B ± 0%     ~     (all equal)
String/1000/Base8-8                 1.15kB ± 0%    1.15kB ± 0%     ~     (all equal)
String/10000/Base8-8                12.3kB ± 0%    12.3kB ± 0%     ~     (all equal)
String/100000/Base8-8                115kB ± 0%     115kB ± 0%     ~     (all equal)
String/10/Base10-8                   64.0B ± 0%     24.0B ± 0%  -62.50%  (p=0.000 n=20+20)
String/100/Base10-8                   192B ± 0%      192B ± 0%     ~     (all equal)
String/1000/Base10-8                1.95kB ± 0%    1.95kB ± 0%     ~     (all equal)
String/10000/Base10-8               20.0kB ± 0%    20.0kB ± 0%     ~     (p=0.983 n=19+20)
String/100000/Base10-8               210kB ± 1%     211kB ± 1%   +0.82%  (p=0.000 n=19+20)
String/10/Base16-8                   16.0B ± 0%     16.0B ± 0%     ~     (all equal)
String/100/Base16-8                  96.0B ± 0%     96.0B ± 0%     ~     (all equal)
String/1000/Base16-8                  896B ± 0%      896B ± 0%     ~     (all equal)
String/10000/Base16-8               9.47kB ± 0%    9.47kB ± 0%     ~     (all equal)
String/100000/Base16-8              90.1kB ± 0%    90.1kB ± 0%     ~     (all equal)
LeafSize/0-8                        16.9kB ± 0%    16.8kB ± 0%   -0.44%  (p=0.000 n=20+20)
LeafSize/1-8                        22.4kB ± 0%    22.3kB ± 0%   -0.34%  (p=0.000 n=20+19)
LeafSize/2-8                        22.4kB ± 0%    22.3kB ± 0%   -0.34%  (p=0.000 n=20+19)
LeafSize/3-8                        22.4kB ± 0%    22.3kB ± 0%   -0.34%  (p=0.000 n=20+17)
LeafSize/4-8                        22.4kB ± 0%    22.3kB ± 0%   -0.34%  (p=0.000 n=20+19)
LeafSize/5-8                        22.4kB ± 0%    22.3kB ± 0%   -0.33%  (p=0.000 n=20+20)
LeafSize/6-8                        22.3kB ± 0%    22.2kB ± 0%   -0.34%  (p=0.000 n=20+20)
LeafSize/7-8                        22.3kB ± 0%    22.2kB ± 0%   -0.35%  (p=0.000 n=20+20)
LeafSize/8-8                        22.3kB ± 0%    22.2kB ± 0%   -0.34%  (p=0.000 n=16+20)
LeafSize/9-8                        22.3kB ± 0%    22.2kB ± 0%   -0.33%  (p=0.000 n=20+20)
LeafSize/10-8                       22.3kB ± 0%    22.2kB ± 0%   -0.33%  (p=0.000 n=20+20)
LeafSize/11-8                       22.3kB ± 0%    22.2kB ± 0%   -0.33%  (p=0.000 n=20+20)
LeafSize/12-8                       22.3kB ± 0%    22.2kB ± 0%   -0.33%  (p=0.000 n=20+20)
LeafSize/13-8                       22.3kB ± 0%    22.2kB ± 0%   -0.34%  (p=0.000 n=20+15)
LeafSize/14-8                       22.3kB ± 0%    22.2kB ± 0%   -0.33%  (p=0.000 n=20+20)
LeafSize/15-8                       22.3kB ± 0%    22.2kB ± 0%   -0.33%  (p=0.000 n=20+20)
LeafSize/16-8                       22.3kB ± 0%    22.2kB ± 0%   -0.33%  (p=0.000 n=19+20)
LeafSize/32-8                       22.3kB ± 0%    22.2kB ± 0%   -0.32%  (p=0.000 n=20+20)
LeafSize/64-8                       21.8kB ± 0%    21.7kB ± 0%   -0.33%  (p=0.000 n=18+19)
ProbablyPrime/n=0-8                 15.3kB ± 0%    14.9kB ± 0%   -2.35%  (p=0.000 n=20+20)
ProbablyPrime/n=1-8                 21.0kB ± 0%    20.7kB ± 0%   -1.71%  (p=0.000 n=20+20)
ProbablyPrime/n=5-8                 43.4kB ± 0%    42.9kB ± 0%   -1.20%  (p=0.000 n=20+20)
ProbablyPrime/n=10-8                71.5kB ± 0%    70.7kB ± 0%   -1.01%  (p=0.000 n=19+20)
ProbablyPrime/n=20-8                 127kB ± 0%     126kB ± 0%   -0.88%  (p=0.000 n=20+20)
ProbablyPrime/Lucas-8               3.07kB ± 0%    2.79kB ± 0%   -9.12%  (p=0.000 n=20+20)
ProbablyPrime/MillerRabinBase2-8    12.1kB ± 0%    12.0kB ± 0%   -0.66%  (p=0.000 n=20+20)
FloatSqrt/64-8                        416B ± 0%      360B ± 0%  -13.46%  (p=0.000 n=20+20)
FloatSqrt/128-8                       640B ± 0%      584B ± 0%   -8.75%  (p=0.000 n=20+20)
FloatSqrt/256-8                       512B ± 0%      472B ± 0%   -7.81%  (p=0.000 n=20+20)
FloatSqrt/1000-8                    1.47kB ± 0%    1.43kB ± 0%   -2.72%  (p=0.000 n=20+20)
FloatSqrt/10000-8                   18.2kB ± 0%    18.1kB ± 0%   -0.22%  (p=0.000 n=20+20)
FloatSqrt/100000-8                   204kB ± 0%     204kB ± 0%   -0.02%  (p=0.000 n=20+20)
FloatSqrt/1000000-8                 6.37MB ± 0%    6.37MB ± 0%   -0.00%  (p=0.000 n=19+20)
[Geo mean]                          3.42kB         3.24kB        -5.33%

name                              old allocs/op  new allocs/op  delta
DecimalConversion-8                  1.65k ± 0%     1.65k ± 0%     ~     (all equal)
FloatString/100-8                     8.00 ± 0%      8.00 ± 0%     ~     (all equal)
FloatString/1000-8                    9.00 ± 0%      9.00 ± 0%     ~     (all equal)
FloatString/10000-8                   22.0 ± 0%      22.0 ± 0%     ~     (all equal)
FloatString/100000-8                   136 ± 0%       136 ± 0%     ~     (all equal)
FloatAdd/10-8                         0.00           0.00          ~     (all equal)
FloatAdd/100-8                        0.00           0.00          ~     (all equal)
FloatAdd/1000-8                       0.00           0.00          ~     (all equal)
FloatAdd/10000-8                      0.00           0.00          ~     (all equal)
FloatAdd/100000-8                     0.00           0.00          ~     (all equal)
FloatSub/10-8                         0.00           0.00          ~     (all equal)
FloatSub/100-8                        0.00           0.00          ~     (all equal)
FloatSub/1000-8                       0.00           0.00          ~     (all equal)
FloatSub/10000-8                      0.00           0.00          ~     (all equal)
FloatSub/100000-8                     0.00           0.00          ~     (all equal)
ParseFloatSmallExp-8                   110 ± 0%       130 ± 0%  +18.18%  (p=0.000 n=20+20)
ParseFloatLargeExp-8                   319 ± 0%       371 ± 0%  +16.30%  (p=0.000 n=20+20)
GCD10x10/WithoutXY-8                  2.00 ± 0%      2.00 ± 0%     ~     (all equal)
GCD10x10/WithXY-8                     5.00 ± 0%      6.00 ± 0%  +20.00%  (p=0.000 n=20+20)
GCD10x100/WithoutXY-8                 4.00 ± 0%      4.00 ± 0%     ~     (all equal)
GCD10x100/WithXY-8                    9.00 ± 0%     12.00 ± 0%  +33.33%  (p=0.000 n=20+20)
GCD10x1000/WithoutXY-8                4.00 ± 0%      4.00 ± 0%     ~     (all equal)
GCD10x1000/WithXY-8                   11.0 ± 0%      12.0 ± 0%   +9.09%  (p=0.000 n=20+20)
GCD10x10000/WithoutXY-8               4.00 ± 0%      4.00 ± 0%     ~     (all equal)
GCD10x10000/WithXY-8                  11.0 ± 0%      12.0 ± 0%   +9.09%  (p=0.000 n=20+20)
GCD10x100000/WithoutXY-8              4.00 ± 0%      4.00 ± 0%     ~     (all equal)
GCD10x100000/WithXY-8                 11.0 ± 0%      12.0 ± 0%   +9.09%  (p=0.000 n=20+20)
GCD100x100/WithoutXY-8                6.00 ± 0%     10.00 ± 0%  +66.67%  (p=0.000 n=20+20)
GCD100x100/WithXY-8                   9.00 ± 0%     15.00 ± 0%  +66.67%  (p=0.000 n=20+20)
GCD100x1000/WithoutXY-8               6.00 ± 0%      8.00 ± 0%  +33.33%  (p=0.000 n=20+20)
GCD100x1000/WithXY-8                  12.0 ± 0%      13.0 ± 0%   +8.33%  (p=0.000 n=20+20)
GCD100x10000/WithoutXY-8              6.00 ± 0%      8.00 ± 0%  +33.33%  (p=0.000 n=20+20)
GCD100x10000/WithXY-8                 12.0 ± 0%      13.0 ± 0%   +8.33%  (p=0.000 n=20+20)
GCD100x100000/WithoutXY-8             6.00 ± 0%      8.00 ± 0%  +33.33%  (p=0.000 n=20+20)
GCD100x100000/WithXY-8                12.0 ± 0%      13.0 ± 0%   +8.33%  (p=0.000 n=20+20)
GCD1000x1000/WithoutXY-8              10.0 ± 0%      10.0 ± 0%     ~     (all equal)
GCD1000x1000/WithXY-8                 19.0 ± 0%      20.0 ± 0%   +5.26%  (p=0.000 n=20+20)
GCD1000x10000/WithoutXY-8             8.00 ± 0%      8.00 ± 0%     ~     (all equal)
GCD1000x10000/WithXY-8                26.0 ± 0%      26.0 ± 0%     ~     (all equal)
GCD1000x100000/WithoutXY-8            8.00 ± 0%      8.00 ± 0%     ~     (all equal)
GCD1000x100000/WithXY-8               27.0 ± 0%      27.0 ± 0%     ~     (all equal)
GCD10000x10000/WithoutXY-8            10.0 ± 0%      10.0 ± 0%     ~     (all equal)
GCD10000x10000/WithXY-8               76.0 ± 0%      78.0 ± 0%   +2.63%  (p=0.000 n=20+20)
GCD10000x100000/WithoutXY-8           8.00 ± 0%      8.00 ± 0%     ~     (all equal)
GCD10000x100000/WithXY-8               174 ± 0%       174 ± 0%     ~     (all equal)
GCD100000x100000/WithoutXY-8          10.0 ± 0%      10.0 ± 0%     ~     (all equal)
GCD100000x100000/WithXY-8              645 ± 0%       647 ± 0%   +0.31%  (p=0.000 n=20+20)
Hilbert-8                            14.1k ± 0%     14.3k ± 0%   +0.92%  (p=0.000 n=20+20)
Binomial-8                            38.0 ± 0%      38.0 ± 0%     ~     (all equal)
QuoRem-8                              0.00           0.00          ~     (all equal)
Exp-8                                 21.0 ± 0%      21.0 ± 0%     ~     (all equal)
Exp2-8                                22.0 ± 0%      22.0 ± 0%     ~     (all equal)
Bitset-8                              0.00           0.00          ~     (all equal)
BitsetNeg-8                           0.00           0.00          ~     (all equal)
BitsetOrig-8                          1.00 ± 0%      1.00 ± 0%     ~     (all equal)
BitsetNegOrig-8                       2.00 ± 0%      2.00 ± 0%     ~     (all equal)
ModSqrt225_Tonelli-8                  85.0 ± 0%      86.0 ± 0%   +1.18%  (p=0.000 n=20+20)
ModSqrt225_3Mod4-8                    25.0 ± 0%      25.0 ± 0%     ~     (all equal)
ModSqrt231_Tonelli-8                  80.0 ± 0%      80.0 ± 0%     ~     (all equal)
ModSqrt231_5Mod8-8                    32.0 ± 0%      32.0 ± 0%     ~     (all equal)
ModInverse-8                          11.0 ± 0%      11.0 ± 0%     ~     (all equal)
Sqrt-8                                13.0 ± 0%      13.0 ± 0%     ~     (all equal)
IntSqr/1-8                            0.00           0.00          ~     (all equal)
IntSqr/2-8                            0.00           0.00          ~     (all equal)
IntSqr/3-8                            0.00           0.00          ~     (all equal)
IntSqr/5-8                            0.00           0.00          ~     (all equal)
IntSqr/8-8                            0.00           0.00          ~     (all equal)
IntSqr/10-8                           0.00           0.00          ~     (all equal)
IntSqr/20-8                           1.00 ± 0%      1.00 ± 0%     ~     (all equal)
IntSqr/30-8                           1.00 ± 0%      1.00 ± 0%     ~     (all equal)
IntSqr/50-8                           1.00 ± 0%      1.00 ± 0%     ~     (all equal)
IntSqr/80-8                           1.00 ± 0%      1.00 ± 0%     ~     (all equal)
IntSqr/100-8                          1.00 ± 0%      1.00 ± 0%     ~     (all equal)
IntSqr/200-8                          1.00 ± 0%      1.00 ± 0%     ~     (all equal)
IntSqr/300-8                          3.00 ± 0%      3.00 ± 0%     ~     (all equal)
IntSqr/500-8                          3.00 ± 0%      3.00 ± 0%     ~     (all equal)
IntSqr/800-8                          9.00 ± 0%      9.00 ± 0%     ~     (all equal)
IntSqr/1000-8                         9.00 ± 0%      9.00 ± 0%     ~     (all equal)
Div/20/10-8                           0.00           0.00          ~     (all equal)
Div/200/100-8                         0.00           0.00          ~     (all equal)
Div/2000/1000-8                       0.00           0.00          ~     (all equal)
Div/20000/10000-8                     0.00           0.00          ~     (all equal)
Div/200000/100000-8                   0.00           0.00          ~     (all equal)
Mul-8                                 2.00 ± 0%      2.00 ± 0%     ~     (all equal)
ZeroShifts/Shl-8                      1.00 ± 0%      1.00 ± 0%     ~     (all equal)
ZeroShifts/ShlSame-8                  0.00           0.00          ~     (all equal)
ZeroShifts/Shr-8                      1.00 ± 0%      1.00 ± 0%     ~     (all equal)
ZeroShifts/ShrSame-8                  0.00           0.00          ~     (all equal)
Exp3Power/0x10-8                      4.00 ± 0%      4.00 ± 0%     ~     (all equal)
Exp3Power/0x40-8                      4.00 ± 0%      4.00 ± 0%     ~     (all equal)
Exp3Power/0x100-8                     5.00 ± 0%      5.00 ± 0%     ~     (all equal)
Exp3Power/0x400-8                     7.00 ± 0%      7.00 ± 0%     ~     (all equal)
Exp3Power/0x1000-8                    11.0 ± 0%      11.0 ± 0%     ~     (all equal)
Exp3Power/0x4000-8                    15.0 ± 0%      15.0 ± 0%     ~     (all equal)
Exp3Power/0x10000-8                   29.0 ± 0%      29.0 ± 0%     ~     (all equal)
Exp3Power/0x40000-8                    140 ± 0%       140 ± 0%     ~     (all equal)
Exp3Power/0x100000-8                 1.12k ± 0%     1.12k ± 0%     ~     (all equal)
Exp3Power/0x400000-8                 9.88k ± 0%     9.88k ± 0%     ~     (p=0.747 n=17+19)
Fibo-8                                 739 ± 0%       743 ± 0%   +0.54%  (p=0.000 n=20+20)
NatSqr/1-8                            1.00 ± 0%      1.00 ± 0%     ~     (all equal)
NatSqr/2-8                            1.00 ± 0%      1.00 ± 0%     ~     (all equal)
NatSqr/3-8                            1.00 ± 0%      1.00 ± 0%     ~     (all equal)
NatSqr/5-8                            1.00 ± 0%      1.00 ± 0%     ~     (all equal)
NatSqr/8-8                            1.00 ± 0%      1.00 ± 0%     ~     (all equal)
NatSqr/10-8                           1.00 ± 0%      1.00 ± 0%     ~     (all equal)
NatSqr/20-8                           2.00 ± 0%      2.00 ± 0%     ~     (all equal)
NatSqr/30-8                           2.00 ± 0%      2.00 ± 0%     ~     (all equal)
NatSqr/50-8                           2.00 ± 0%      2.00 ± 0%     ~     (all equal)
NatSqr/80-8                           2.00 ± 0%      2.00 ± 0%     ~     (all equal)
NatSqr/100-8                          2.00 ± 0%      2.00 ± 0%     ~     (all equal)
NatSqr/200-8                          2.00 ± 0%      2.00 ± 0%     ~     (all equal)
NatSqr/300-8                          4.00 ± 0%      4.00 ± 0%     ~     (all equal)
NatSqr/500-8                          4.00 ± 0%      4.00 ± 0%     ~     (all equal)
NatSqr/800-8                          10.0 ± 0%      10.0 ± 0%     ~     (all equal)
NatSqr/1000-8                         10.0 ± 0%      10.0 ± 0%     ~     (all equal)
NatSetBytes/8-8                       0.00           0.00          ~     (all equal)
NatSetBytes/24-8                      1.00 ± 0%      1.00 ± 0%     ~     (all equal)
NatSetBytes/128-8                     1.00 ± 0%      1.00 ± 0%     ~     (all equal)
NatSetBytes/7-8                       0.00           0.00          ~     (all equal)
NatSetBytes/23-8                      1.00 ± 0%      1.00 ± 0%     ~     (all equal)
NatSetBytes/127-8                     1.00 ± 0%      1.00 ± 0%     ~     (all equal)
ScanPi-8                              60.0 ± 0%      61.0 ± 0%   +1.67%  (p=0.000 n=20+20)
StringPiParallel-8                    24.0 ± 0%      24.0 ± 0%     ~     (all equal)
Scan/10/Base2-8                       1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/100/Base2-8                      1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/1000/Base2-8                     1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/10000/Base2-8                    1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/100000/Base2-8                   1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/10/Base8-8                       1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/100/Base8-8                      1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/1000/Base8-8                     1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/10000/Base8-8                    1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/100000/Base8-8                   1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/10/Base10-8                      1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/100/Base10-8                     1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/1000/Base10-8                    1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/10000/Base10-8                   1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/100000/Base10-8                  1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/10/Base16-8                      1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/100/Base16-8                     1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/1000/Base16-8                    1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/10000/Base16-8                   1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Scan/100000/Base16-8                  1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/10/Base2-8                     1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/100/Base2-8                    1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/1000/Base2-8                   1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/10000/Base2-8                  1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/100000/Base2-8                 1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/10/Base8-8                     1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/100/Base8-8                    1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/1000/Base8-8                   1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/10000/Base8-8                  1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/100000/Base8-8                 1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/10/Base10-8                    2.00 ± 0%      2.00 ± 0%     ~     (all equal)
String/100/Base10-8                   2.00 ± 0%      2.00 ± 0%     ~     (all equal)
String/1000/Base10-8                  3.00 ± 0%      3.00 ± 0%     ~     (all equal)
String/10000/Base10-8                 3.00 ± 0%      3.00 ± 0%     ~     (all equal)
String/100000/Base10-8                3.00 ± 0%      3.00 ± 0%     ~     (all equal)
String/10/Base16-8                    1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/100/Base16-8                   1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/1000/Base16-8                  1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/10000/Base16-8                 1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/100000/Base16-8                1.00 ± 0%      1.00 ± 0%     ~     (all equal)
LeafSize/0-8                          10.0 ± 0%      10.0 ± 0%     ~     (all equal)
LeafSize/1-8                          13.0 ± 0%      13.0 ± 0%     ~     (all equal)
LeafSize/2-8                          13.0 ± 0%      13.0 ± 0%     ~     (all equal)
LeafSize/3-8                          13.0 ± 0%      13.0 ± 0%     ~     (all equal)
LeafSize/4-8                          13.0 ± 0%      13.0 ± 0%     ~     (all equal)
LeafSize/5-8                          13.0 ± 0%      13.0 ± 0%     ~     (all equal)
LeafSize/6-8                          12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/7-8                          12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/8-8                          12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/9-8                          12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/10-8                         12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/11-8                         12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/12-8                         12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/13-8                         12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/14-8                         12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/15-8                         12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/16-8                         12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/32-8                         12.0 ± 0%      12.0 ± 0%     ~     (all equal)
LeafSize/64-8                         11.0 ± 0%      11.0 ± 0%     ~     (all equal)
ProbablyPrime/n=0-8                   52.0 ± 0%      52.0 ± 0%     ~     (all equal)
ProbablyPrime/n=1-8                   73.0 ± 0%      73.0 ± 0%     ~     (all equal)
ProbablyPrime/n=5-8                    157 ± 0%       157 ± 0%     ~     (all equal)
ProbablyPrime/n=10-8                   262 ± 0%       262 ± 0%     ~     (all equal)
ProbablyPrime/n=20-8                   472 ± 0%       472 ± 0%     ~     (all equal)
ProbablyPrime/Lucas-8                 22.0 ± 0%      22.0 ± 0%     ~     (all equal)
ProbablyPrime/MillerRabinBase2-8      29.0 ± 0%      29.0 ± 0%     ~     (all equal)
FloatSqrt/64-8                        9.00 ± 0%     10.00 ± 0%  +11.11%  (p=0.000 n=20+20)
FloatSqrt/128-8                       12.0 ± 0%      13.0 ± 0%   +8.33%  (p=0.000 n=20+20)
FloatSqrt/256-8                       8.00 ± 0%      8.00 ± 0%     ~     (all equal)
FloatSqrt/1000-8                      9.00 ± 0%      9.00 ± 0%     ~     (all equal)
FloatSqrt/10000-8                     14.0 ± 0%      14.0 ± 0%     ~     (all equal)
FloatSqrt/100000-8                    33.0 ± 0%      33.0 ± 0%     ~     (all equal)
FloatSqrt/1000000-8                  1.16k ± 0%     1.16k ± 0%     ~     (all equal)
[Geo mean]                            6.62           6.76        +2.09%

Change-Id: Id9df4157cac1e07721e35cff7fcdefe60703873a
Reviewed-on: https://go-review.googlesource.com/c/150999
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-11-28 17:38:46 +00:00
Andrew Bonventre
7f3c6f64bd doc: update go1.12.html using latest output from relnote tool
Change-Id: I6b20c3fd7f15f35d2288d9a0fd6512c541a62c92
Reviewed-on: https://go-review.googlesource.com/c/151558
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-11-28 17:22:40 +00:00
Keith Randall
2b4f24a2d2 cmd/compile: randomize value order in block for testing
A little bit of compiler stress testing. Randomize the order
of the values in a block before every phase. This randomization
makes sure that we're not implicitly depending on that order.

Currently the random seed is a hash of the function name.
It provides determinism, but sacrifices some coverage.
Other arrangements are possible (env var, ...) but require
more setup.

Fixes #20178

Change-Id: Idae792a23264bd9a3507db6ba49b6d591a608e83
Reviewed-on: https://go-review.googlesource.com/c/33909
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-11-28 17:13:46 +00:00
Keith Randall
ff9481ec0d cmd/compile: order nil checks by source position
There's nothing enforcing ordering between redundant nil checks when
they may occur during the same memory state. Commit to using the
earliest one in source order.

Otherwise the choice of which to remove depends on the ordering of
values in a block (before scheduling). That's unfortunate when trying
to ensure that the compiler doesn't depend on that ordering for
anything.

Update #20178

Change-Id: I2cdd5be10618accd9d91fa07406c90cbd023ffba
Reviewed-on: https://go-review.googlesource.com/c/151517
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-11-28 16:49:31 +00:00
Tobias Klauser
71f9f4b84b vendor: update x/net/internal/nettest for aix support
Update golang.org/x/net/internal/nettest to x/net git rev 9b4f9f5ad519
for:

   internal/nettest: add AIX operating system
   https://golang.org/cl/144077

This fixes the build failure of the vendored x/net/internal/nettest on
aix/ppc64.

Additionally this also pulls in:

  all: re-adjust build constraints for JS and NaCl
  https://golang.org/cl/122539

Updates #25893

Change-Id: I9abefc7d4ad158e9e68913362f7f1320321d6f5f
Reviewed-on: https://go-review.googlesource.com/c/151301
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-28 16:27:48 +00:00
Ian Lance Taylor
5966c2f4ec doc: fix formatting for Darwin entry
Updates #23011

Change-Id: I38360501c772ddf7cc4bd1b5d7b0225387ead535
Reviewed-on: https://go-review.googlesource.com/c/151361
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
2018-11-28 15:35:07 +00:00
Alex Brainman
1cac3e84f5 plugin: skip building tests on linux/arm64
It appears that linux/arm64

https://build.golang.org/log/6808dbded6aebadf68cb65a0e30e4d1a62cd687b

fails with

/workdir/go/pkg/tool/linux_arm64/link: running gcc failed: exit status 1
/usr/bin/ld.gold: internal error in global, at ../../gold/aarch64.cc:4973
collect2: error: ld returned 1 exit status
FAIL plugin [build failed]

error. So stop building these tests on linux/arm64.

Fixes linux/arm64 build

Change-Id: I41eb3d9659f7967d80136513899a5203bbf03fb1
Reviewed-on: https://go-review.googlesource.com/c/151478
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-11-28 08:33:05 +00:00
Tobias Klauser
3dd509d23d lib/time: update tzdata to 2018g
Now that the tree has been frozen for some time, update the tzdata
database to version 2018g (released 2018-10-26) for Go 1.12.

Updates #22487

Change-Id: I9e82bcdaef28d308643c08c9fd3472e4c14a196e
Reviewed-on: https://go-review.googlesource.com/c/151299
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-28 08:22:56 +00:00
Wil Selwood
d704b5c956 unicode: improve generated comments for categories
The comments on the category range tables in the unicode package are fairly
redundent and require an external source to translate into human readable
category names.

This adds a look up table with the category descriptions and uses it if
available when generating the comments for the range tables.

Fixes #28954

Change-Id: I853e2d270def6492c2c1dd2ad0ec761a74c04e5d
Reviewed-on: https://go-review.googlesource.com/c/151297
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-28 03:12:48 +00:00
Ian Lance Taylor
6bf531384d doc: preannounce dropping macOS 10.10 support
Updates #23011

Change-Id: I0eccea5d08a8758585f183540787b78fb80aa36a
Reviewed-on: https://go-review.googlesource.com/c/151360
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-28 02:38:43 +00:00
Ian Lance Taylor
3a60629a6d net: use .invalid for an invalid domain name
Fixes #25370

Change-Id: I12da0cc17f433ca12c85fb986d65ac9ecb2c3f20
Reviewed-on: https://go-review.googlesource.com/c/151359
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-28 02:38:17 +00:00
Clément Chigot
4295ed9bef cmd: fix symbols addressing for aix/ppc64
This commit changes the code generated for addressing symbols on AIX
operating system.

On AIX, every symbol accesses must be done via another symbol near the TOC,
named TOC anchor or TOC entry. This TOC anchor is a pointer to the symbol
address.
During Progedit function, when a symbol access is detected, its instructions
are modified to create a load on its TOC anchor and retrieve the symbol.

Change-Id: I00cf8f49c13004bc99fa8af13d549a709320f797
Reviewed-on: https://go-review.googlesource.com/c/151039
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-27 21:06:16 +00:00
Clément Chigot
b41cdc4a59 cmd/link: improve XCOFF dynamic symbols generation
This commit fixes and improves the generation of dynamic symbols for
XCOFF files.
This mainly adds for every dynamic symbols a new symbol named
s.Extname().

Change-Id: I5b788f076d9a05e5d42f08eb1a74fd3e3efa9a86
Reviewed-on: https://go-review.googlesource.com/c/151038
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-27 19:47:09 +00:00
David Tolpin
7d7e839a76 go/printer: print parenthesized declarations if len(d.Specs) > 1
Parenthesized declaration must be printed if len(d.Specs) > 1 even if d.Lparen==token.NoPos. This happens if the node tree is created programmatically. Otherwise, all but the first specifications just silently disappear from the output.

Change-Id: I17ab24bb1cd56fe1e611199698535ca60a97f5ea
GitHub-Last-Rev: 2f168dc7ad
GitHub-Pull-Request: golang/go#28533
Reviewed-on: https://go-review.googlesource.com/c/146657
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-11-27 18:35:40 +00:00
Keith Randall
0b79dde112 cmd/compile: don't use CMOV ops to compute load addresses
We want to issue loads as soon as possible, especially when they
are going to miss in the cache. Using a conditional move (CMOV) here:

i := ...
if cond {
   i++
}
... = a[i]

means that we have to wait for cond to be computed before the load
is issued. Without a CMOV, if the branch is predicted correctly the
load can be issued in parallel with computing cond.
Even if the branch is predicted incorrectly, maybe the speculative
load is close to the real load, and we get a prefetch for free.
In the worst case, when the prediction is wrong and the address is
way off, we only lose by the time difference between the CMOV
latency (~2 cycles) and the mispredict restart latency (~15 cycles).

We only squash CMOVs that affect load addresses. Results of CMOVs
that are used for other things (store addresses, store values) we
use as before.

Fixes #26306

Change-Id: I82ca14b664bf05e1d45e58de8c4d9c775a127ca1
Reviewed-on: https://go-review.googlesource.com/c/145717
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2018-11-27 17:22:37 +00:00
Clément Chigot
5680874e0c test: fix nilptr5 for AIX
This commit fixes a mistake made in CL 144538.
This nilcheck can be removed because OpPPC64LoweredMove will fault if
arg0 is nil, as it's used to store. Further information can be found in
cmd/compile/internal/ssa/nilcheck.go.

Change-Id: Ifec0080c00eb1f94a8c02f8bf60b93308e71b119
Reviewed-on: https://go-review.googlesource.com/c/151298
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-27 15:36:08 +00:00
Elias Naur
cfac65bf2f cmd/link/internal/ld: omit deprecated linker argument for iOS builds
After CL 151139 introduced a plugin test, the macOS linker for iOS
outputs:

ld: warning: -flat_namespace is deprecated on iOS

Omit the -flat_namespace flag on iOS; plugins are not supported on
iOS, and unlikely to ever be.

Change-Id: I2d08f8b984efcfd442d572b4a0f3a2c95c551b9f
Reviewed-on: https://go-review.googlesource.com/c/151300
Run-TryBot: Elias Naur <elias.naur@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-27 15:21:22 +00:00
Alex Brainman
22dbc96d8a debug/pe: correct TestImportTableInUnknownSection error message
TestImportTableInUnknownSection uses kernel32.dll file, but the error
message mentions atmfd.dll. Adjust error message to match the test.

This change should have been part of CL 151137.

Updates #27904

Change-Id: Ifc31a12134b328472191122f8426ab6ed234fbd4
Reviewed-on: https://go-review.googlesource.com/c/151477
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
2018-11-27 09:26:16 +00:00
Alex Brainman
41fd4c88ad cmd/link: do not use _GLOBAL_OFFSET_TABLE_ on windows/386
When building windows/386 executable that imports "plugin" package,
cmd/link adds reference to DLL with blank name. Running

objdump -x a.exe

reports

...
The Import Tables (interpreted .idata section contents)
...
DLL Name:
vma:  Hint/Ord Member-Name Bound-To
25308a     0  _GLOBAL_OFFSET_TABLE_
...

So, obviously, executable cannot run, because Windows complains
that it cannot find DLL when trying to run it.

Stop using _GLOBAL_OFFSET_TABLE_ on windows/386.

Fixes #28789

Change-Id: Idd489eafd998f6e329f40c5d90a2a8965ab1d873
Reviewed-on: https://go-review.googlesource.com/c/151139
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-27 08:52:43 +00:00
Bryan C. Mills
440368da52 cmd/go/internal/imports: resolve symlinks in ScanDir
We were using the mode reported by ReadDir to decide whether each
entry is a file, but in the case of symlinks that isn't sufficient: a
symlink could point to either a file or a directory, and if it is a
file we should treat it as such.

Fixes #28107

Change-Id: Icf6e495dce427a7b1124c9cc9f085e40a215c169
Reviewed-on: https://go-review.googlesource.com/c/141097
Run-TryBot: Bryan C. Mills <bcmills@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-11-27 06:27:52 +00:00
Brian Kessler
979d9027ae math/bits: define Div to panic when y<=hi
Div panics when y<=hi because either the quotient overflows
the size of the output or division by zero occurs when y==0.
This provides a uniform behavior for all implementations.

Fixes #28316

Change-Id: If23aeb10e0709ee1a60b7d614afc9103d674a980
Reviewed-on: https://go-review.googlesource.com/c/149517
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-11-27 05:04:33 +00:00
Brian Kessler
319787a528 cmd/compile: intrinsify math/bits.Div on amd64
Note that the intrinsic implementation panics separately for overflow and
divide by zero, which matches the behavior of the pure go implementation.
There is a modest performance improvement after intrinsic implementation.

name     old time/op  new time/op  delta
Div-4    53.0ns ± 1%  47.0ns ± 0%  -11.28%  (p=0.008 n=5+5)
Div32-4  18.4ns ± 0%  18.5ns ± 1%     ~     (p=0.444 n=5+5)
Div64-4  53.3ns ± 0%  47.5ns ± 4%  -10.77%  (p=0.008 n=5+5)

Updates #28273

Change-Id: Ic1688ecc0964acace2e91bf44ef16f5fb6b6bc82
Reviewed-on: https://go-review.googlesource.com/c/144378
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-11-27 05:04:25 +00:00
Brian Kessler
ead5d1e316 math/bits: panic when y<=hi in Div
Explicitly check for divide-by-zero/overflow and panic with the appropriate
runtime error.  The additional checks have basically no effect on performance
since the branch is easily predicted.

name     old time/op  new time/op  delta
Div-4    53.9ns ± 1%  53.0ns ± 1%  -1.59%  (p=0.016 n=4+5)
Div32-4  17.9ns ± 0%  18.4ns ± 0%  +2.56%  (p=0.008 n=5+5)
Div64-4  53.5ns ± 0%  53.3ns ± 0%    ~     (p=0.095 n=5+5)

Updates #28316

Change-Id: I36297ee9946cbbc57fefb44d1730283b049ecf57
Reviewed-on: https://go-review.googlesource.com/c/144377
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-11-27 05:04:14 +00:00
Keith Randall
eb6c433eb3 cmd/compile: don't convert non-Go-constants to OLITERALs
Don't convert values that aren't Go constants, like
uintptr(unsafe.Pointer(nil)), to a literal constant. This avoids
assuming they are constants for things like indexing, array sizes,
case duplication, etc.

Also, nil is an allowed duplicate in switches. CTNILs aren't Go constants.

Fixes #28078
Fixes #28079

Change-Id: I9ab8af47098651ea09ef10481787eae2ae2fb445
Reviewed-on: https://go-review.googlesource.com/c/151320
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-27 01:21:41 +00:00
Clément Chigot
3f9efe7500 cmd/link: fix XCOFF sections
XCOFF files can't have multiples text or data sections. The name
of each type section must be .text, .data and .bss.

This commit also updates cmd/internal/objfile/xcoff.go to retrieve Go
sections using runtime symbols.

Change-Id: Ib6315f19dad2d154a4531fc6508e7cbd8bc94743
Reviewed-on: https://go-review.googlesource.com/c/151037
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-26 23:51:21 +00:00
Ian Lance Taylor
9e849dcee4 runtime: improve godoc formatting of memclrNoHeapPointers comment
Fixes #28955

Change-Id: I738ad0c76f7bf8fc504a48cf55d3becd5ed7a9d6
Reviewed-on: https://go-review.googlesource.com/c/151337
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-26 23:42:43 +00:00
Clément Chigot
63ac89bfb1 cmd/link/internal/ld: remove R_ADDR relocations inside XCOFF text sections
On XCOFF, it is forbidden relocation of a DATA pointer to a text
section. It happens when a RODATA symbol needs a DATA symbol's address.
This commit moves every RODATA symbols with a R_ADDR on a data symbol to
.data sections to avoid these relocations.

Change-Id: I7f34d8e0ebdc8352a74e6b40e4c893d8d9419f4d
Reviewed-on: https://go-review.googlesource.com/c/146977
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-26 23:37:00 +00:00
Keith Randall
6fff980cf1 cmd/compile: initialize sparse slice literals dynamically
When a slice composite literal is sparse, initialize it dynamically
instead of statically.

s := []int{5:5, 20:20}

To initialize the backing store for s, use 2 constant writes instead
of copying from a static array with 21 entries.

This CL also fixes pathologies in the compiler when the slice is
*very* sparse.

Fixes #23780

Change-Id: Iae95c6e6f6a0e2994675cbc750d7a4dd6436b13b
Reviewed-on: https://go-review.googlesource.com/c/151319
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-26 22:50:48 +00:00
Keith Randall
1602e49701 cmd/compile: don't constant-fold non-Go constants in the frontend
Abort evconst if its argument isn't a Go constant. The SSA backend
will do the optimizations in question later. They tend to be weird
cases, like uintptr(unsafe.Pointer(uintptr(1))).

Fix OADDSTR and OCOMPLEX cases in isGoConst.
OADDSTR has its arguments in n.List, not n.Left and n.Right.
OCOMPLEX might have a 2-result function as its arg in List[0]
(in which case it isn't a Go constant).

Fixes #24760

Change-Id: Iab312d994240d99b3f69bfb33a443607e872b01d
Reviewed-on: https://go-review.googlesource.com/c/151338
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-26 22:49:57 +00:00
Keith Randall
57c8eb92b7 cmd/compile: remove CLOBBERDEAD experiment
This experiment is less effective and less needed since the
introduction of stack objects.

We can't clobber stack objects because we don't know statically
whether they are live or not.

We don't really need this experiment that much any more, as it was
primarily used to test the complicated ambiguously-live logic in the
liveness analysis, which has been removed in favor of stack objects.

It is also ~infeasible to maintain once we have safepoints everywhere.

Fixes #27326

Change-Id: I3bdde480b93dd508d048703055d4586b496176af
Reviewed-on: https://go-review.googlesource.com/c/151317
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-26 21:04:38 +00:00
Than McIntosh
984be3b0f8 go/internal/gccgoimporter: enhance for new export data, fix test issues
This patch merges in support for reading indexed type export data,
from the gofrontend CL https://golang.org/cl/143022 (which includes
a change in the export data version number from V2 to V3).

Also fixes the key tests to insure that they run both in gccgo builds
and main Go repo builds if "gccgo" is present (prior to this the tests
were not running in either scenario); this required fixing up some of
the expected results.

Fixes #28961.

Change-Id: I644d171f2a46be9160f89dada06ab3c20468bab7
Reviewed-on: https://go-review.googlesource.com/c/149957
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-26 20:35:55 +00:00
Keith Randall
ca3749230b cmd/compile: allow bodyless function if it is linkname'd
In assembly free packages (aka "complete" or "pure go"), allow
bodyless functions if they are linkname'd to something else.

Presumably the thing the function is linkname'd to has a definition.
If not, the linker will complain. And linkname is unsafe, so we expect
users to know what they are doing.

Note this handles only one direction, where the linkname directive
is in the local package. If the linkname directive is in the remote
package, this CL won't help. (See os/signal/sig.s for an example.)

Fixes #23311

Change-Id: I824361b4b582ee05976d94812e5b0e8b0f7a18a6
Reviewed-on: https://go-review.googlesource.com/c/151318
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2018-11-26 20:00:59 +00:00
Jordan Rhee
9ab2ffe8e9 runtime: windows/arm fix tracebacks printed from sigpanic
The exception handler modifies the stack and continuation context so
it looks like the faulting code calls sigpanic() directly. The call was
not set up correctly on ARM, because it did not handle the link register
correctly. This change handles the link register correctly for ARM.

Updates #28854

Change-Id: I7ccf838adfc05cd968a5edd7d19ebba6a2478360
Reviewed-on: https://go-review.googlesource.com/c/150957
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-11-26 19:24:54 +00:00
Clément Chigot
9fe9853ae5 cmd/compile: fix nilcheck for AIX
This commit adapts compile tool to create correct nilchecks for AIX.

AIX allows to load a nil pointer. Therefore, the default nilcheck
which issues a load must be replaced by a CMP instruction followed by a
store at 0x0 if the value is nil. The store will trigger a SIGSEGV as on
others OS.

The nilcheck algorithm must be adapted to do not remove nilcheck if it's
only a read. Stores are detected with v.Type.IsMemory().

Tests related to nilptr must be adapted to the previous changements.
nilptr.go cannot be used as it's because the AIX address space starts at
1<<32.

Change-Id: I9f5aaf0b7e185d736a9b119c0ed2fe4e5bd1e7af
Reviewed-on: https://go-review.googlesource.com/c/144538
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-11-26 14:13:53 +00:00
Clément Chigot
041526c6ef runtime: handle 64bits addresses for AIX
This commit allows the runtime to handle 64bits addresses returned by
mmap syscall on AIX.

Mmap syscall returns addresses on 59bits on AIX. But the Arena
implementation only allows addresses with less than 48 bits.
This commit increases the arena size up to 1<<60 for aix/ppc64.

Update: #25893

Change-Id: Iea72e8a944d10d4f00be915785e33ae82dd6329e
Reviewed-on: https://go-review.googlesource.com/c/138736
Reviewed-by: Austin Clements <austin@google.com>
2018-11-26 14:06:28 +00:00
Rob Pike
bb3b24bffc fmt: update formatting example for maps
Now that maps are printed in deterministic order, the map example
can have multiple keys without breaking the build.

Change-Id: Iccec0cd76a3d41c75d8d4eb768ec0ac09ad9f2ad
Reviewed-on: https://go-review.googlesource.com/c/151218
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-26 05:08:44 +00:00
Rob Pike
cf20540880 doc: improve the interface example in Effective Go
The String method is n-squared and overwrites its receiver.
Fix both issues, with only a slight loss of clarity.

Fixes #28773

Change-Id: I588f69d4cbd72931b28b984671512834473bd466
Reviewed-on: https://go-review.googlesource.com/c/151217
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-26 05:08:25 +00:00
Alex Brainman
048c9164a0 debug/pe: use kernel32.dll in TestImportTableInUnknownSection
TestImportTableInUnknownSection was introduced in CL 110555 to
test PE executable with import table located in section other than
".idata". We used atmfd.dll for that purpose, but it seems
atmfd.dll is not present on some systems.

Use kernel32.dll instead. kernel32.dll import table is located in
".rdata" section, so it should do the job. And every Windows
system has kernel32.dll file.

Also make TestImportTableInUnknownSection run on windows-arm,
since windows-arm should also have kernel32.dll file.

Updates #27904

Change-Id: Ie005ee10e46ae0c06e83929d581e89f86c051eea
Reviewed-on: https://go-review.googlesource.com/c/151137
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-11-24 23:55:07 +00:00
David Chase
04105ef1da cmd/compile: decompose composite OpArg before decomposeUser
This makes it easier to track names of function arguments
for debugging purposes.

Change-Id: Ic34856fe0b910005e1c7bc051d769d489a4b158e
Reviewed-on: https://go-review.googlesource.com/c/150098
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-11-23 22:59:32 +00:00
Yury Smolsky
1ac84999b9 cmd/compile: make ssa blocks collapsable in ssa.html
This CL adds a button that collapses values list of a block.
Button is displayed for every block with non-empty values.

Change-Id: I4b65af81e25349f38341df487d42698c9d006a00
Reviewed-on: https://go-review.googlesource.com/c/144557
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-11-23 22:03:37 +00:00
Austin Clements
c6d493937e cmd/go: more cross-package references from internal/syscall/unix
On some platforms, assembly in internal/syscall/unix references
unexported runtime symbols. Catch these references so the compiler can
generate the necessary ABI wrappers.

Fixes #28769.
Updates #27539.

Change-Id: I118eebfb8b3d907b4c3562198e6afb49854f5827
Reviewed-on: https://go-review.googlesource.com/c/149817
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Clément Chigot <clement.chigot@atos.net>
Reviewed-by: Keith Randall <khr@golang.org>
2018-11-23 21:21:35 +00:00
Cherry Zhang
63a3993a33 cmd/compile: use correct store types in softfloat
When using softfloat, floating point ops are rewritten to integer
ops. The types of store ops were not rewritten. This may lower
to floating point stores, which are problematic. This CL fixes
this by rewriting the store types as well.

This fixes test/fixedbugs/issue28688.go on Wasm. Softfloat mode
is not used by default on Wasm, and it is not needed as Wasm spec
supports floating points. But it is nice to have the correct
types.

Change-Id: Ib5e19e19fa9491b15c2f60320f8724cace5cefb5
Reviewed-on: https://go-review.googlesource.com/c/149965
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-11-23 17:16:36 +00:00
David Heuschmann
649b89377e os: return an error from UserHomeDir to match UserCacheDir
UserHomeDir used to return an empty string if the corresponding
environment variable was not set. Changed it to return an error if the
variable is not set, to have the same signature and behaviour as UserCacheDir.

Fixes #28562

Change-Id: I42c497e8011ecfbbadebe7de1751575273be221c
Reviewed-on: https://go-review.googlesource.com/c/150418
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-22 20:49:16 +00:00
Hana Kim
6d5caf38e3 cmd/trace: revert internal/traceparser
The performance improvement is not as big as we hoped.
Until the API is feature complete, we postpone the release
and avoid added complexity.

This change was prepared by reverting all the changes affected
src/cmd/trace and src/internal/traceparser packages after
golang.org/cl/137635, and then bringing back MMU computation
APIs (originally in src/internal/traceparser) to the
src/internal/trace package.

Revert "cmd/trace: use new traceparser to parse the raw trace files"
This reverts https://golang.org/cl/145457
  (commit 08816cb8d7).

Revert "internal/traceparser: provide parser that uses less space and parses segments of runtime trace files"
This reverts https://golang.org/cl/137635
  (commit daaf361f74).

Change-Id: Ic2a068a7dbaf4053cd9674ca7bde9c58e74385b4
Reviewed-on: https://go-review.googlesource.com/c/150517
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
2018-11-22 02:59:55 +00:00
David du Colombier
47df645473 os: prevent RemoveAll to remove "." on Plan 9
CL 150497 enabled TestRemoveAllDot on "noat" systems.

However, this test is failing on Plan 9 because the rmdir
system call allows to remove "." on Plan 9.

This change prevents the "noat" implementation of RemoveAll to
remove ".", so it remains consistent with the "at" implementation.

Fixes #28903.

Change-Id: Ifc8fe36bdd8053a4e416f0590663c844c97ce72a
Reviewed-on: https://go-review.googlesource.com/c/150621
Run-TryBot: David du Colombier <0intro@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-11-21 23:29:43 +00:00