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16 Commits

Author SHA1 Message Date
Egon Elbre
3ee32439b5 cmd/compile: ARM64 optimize []float64 and []float32 access 
Optimize load and store to []float64 and []float32.
Previously it used LSL instead of shifted register indexed load/store.

Before:

    LSL   $3, R0, R0
    FMOVD F0, (R1)(R0)

After:

    FMOVD F0, (R1)(R0<<3)

Fixes #42798

Change-Id: I0c0912140c3dce5aa6abc27097c0eb93833cc589
Reviewed-on: https://go-review.googlesource.com/c/go/+/273706
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Trust: Giovanni Bajo <rasky@develer.com>
 2021-02-24 19:49:08 +00:00
Keith Randall
04b8a9fea5 all: implement GO386=softfloat 
Backstop support for non-sse2 chips now that 387 is gone.

RELNOTE=yes

Change-Id: Ib10e69c4a3654c15a03568f93393437e1939e013
Reviewed-on: https://go-review.googlesource.com/c/go/+/260017
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
 2020-10-06 22:49:38 +00:00
Keith Randall
fe2cfb74ba all: drop 387 support 
My last 387 CL. So sad ... ... ... ... not!

Fixes #40255

Change-Id: I8d4ddb744b234b8adc735db2f7c3c7b6d8bbdfa4
Reviewed-on: https://go-review.googlesource.com/c/go/+/258957
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
 2020-10-02 00:00:51 +00:00
Ruixin(Peter) Bao
b2790a2838 cmd/compile: allow floating point Ops to produce flags on s390x 
On s390x, some floating point arithmetic instructions (FSUB, FADD)  generate flag.
This patch allows those related SSA ops to return a tuple, where the second argument of
the tuple is the generated flag. We can use the flag and remove the
subsequent comparison instruction (e.g: LTDBR).

This CL also reduces the .text section for math.test binary by 0.4KB.

Benchmarks:
name                    old time/op  new time/op  delta
Acos-18                 12.1ns ± 0%  12.1ns ± 0%     ~     (all equal)
Acosh-18                18.5ns ± 0%  18.5ns ± 0%     ~     (all equal)
Asin-18                 13.1ns ± 0%  13.1ns ± 0%     ~     (all equal)
Asinh-18                19.4ns ± 0%  19.5ns ± 1%     ~     (p=0.444 n=5+5)
Atan-18                 10.0ns ± 0%  10.0ns ± 0%     ~     (all equal)
Atanh-18                19.1ns ± 1%  19.2ns ± 2%     ~     (p=0.841 n=5+5)
Atan2-18                16.4ns ± 0%  16.4ns ± 0%     ~     (all equal)
Cbrt-18                 14.8ns ± 0%  14.8ns ± 0%     ~     (all equal)
Ceil-18                 0.78ns ± 0%  0.78ns ± 0%     ~     (all equal)
Copysign-18             0.80ns ± 0%  0.80ns ± 0%     ~     (all equal)
Cos-18                  7.19ns ± 0%  7.19ns ± 0%     ~     (p=0.556 n=4+5)
Cosh-18                 12.4ns ± 0%  12.4ns ± 0%     ~     (all equal)
Erf-18                  10.8ns ± 0%  10.8ns ± 0%     ~     (all equal)
Erfc-18                 11.0ns ± 0%  11.0ns ± 0%     ~     (all equal)
Erfinv-18               23.0ns ±16%  26.8ns ± 1%  +16.90%  (p=0.008 n=5+5)
Erfcinv-18              23.3ns ±15%  26.1ns ± 7%     ~     (p=0.087 n=5+5)
Exp-18                  8.67ns ± 0%  8.67ns ± 0%     ~     (p=1.000 n=4+4)
ExpGo-18                50.8ns ± 3%  52.4ns ± 2%     ~     (p=0.063 n=5+5)
Expm1-18                9.49ns ± 1%  9.47ns ± 0%     ~     (p=1.000 n=5+5)
Exp2-18                 52.7ns ± 1%  50.5ns ± 3%   -4.10%  (p=0.024 n=5+5)
Exp2Go-18               50.6ns ± 1%  48.4ns ± 3%   -4.39%  (p=0.008 n=5+5)
Abs-18                  0.67ns ± 0%  0.67ns ± 0%     ~     (p=0.444 n=5+5)
Dim-18                  1.02ns ± 0%  1.03ns ± 0%   +0.98%  (p=0.008 n=5+5)
Floor-18                0.78ns ± 0%  0.78ns ± 0%     ~     (all equal)
Max-18                  3.09ns ± 1%  3.05ns ± 0%   -1.42%  (p=0.008 n=5+5)
Min-18                  3.32ns ± 1%  3.30ns ± 0%   -0.72%  (p=0.016 n=5+4)
Mod-18                  62.3ns ± 1%  65.8ns ± 3%   +5.55%  (p=0.008 n=5+5)
Frexp-18                5.05ns ± 2%  4.98ns ± 0%     ~     (p=0.683 n=5+5)
Gamma-18                24.4ns ± 0%  24.1ns ± 0%   -1.23%  (p=0.008 n=5+5)
Hypot-18                10.3ns ± 0%  10.3ns ± 0%     ~     (all equal)
HypotGo-18              10.2ns ± 0%  10.2ns ± 0%     ~     (all equal)
Ilogb-18                3.56ns ± 1%  3.54ns ± 0%     ~     (p=0.595 n=5+5)
J0-18                    113ns ± 0%   108ns ± 1%   -4.42%  (p=0.016 n=4+5)
J1-18                    115ns ± 0%   109ns ± 1%   -4.87%  (p=0.016 n=4+5)
Jn-18                    240ns ± 0%   230ns ± 2%   -4.41%  (p=0.008 n=5+5)
Ldexp-18                6.19ns ± 0%  6.19ns ± 0%     ~     (p=0.444 n=5+5)
Lgamma-18               32.2ns ± 0%  32.2ns ± 0%     ~     (all equal)
Log-18                  13.1ns ± 0%  13.1ns ± 0%     ~     (all equal)
Logb-18                 4.23ns ± 0%  4.22ns ± 0%     ~     (p=0.444 n=5+5)
Log1p-18                12.7ns ± 0%  12.7ns ± 0%     ~     (all equal)
Log10-18                18.1ns ± 0%  18.2ns ± 0%     ~     (p=0.167 n=5+5)
Log2-18                 14.0ns ± 0%  14.0ns ± 0%     ~     (all equal)
Modf-18                 10.4ns ± 0%  10.5ns ± 0%   +0.96%  (p=0.016 n=4+5)
Nextafter32-18          11.3ns ± 0%  11.3ns ± 0%     ~     (all equal)
Nextafter64-18          4.01ns ± 1%  3.97ns ± 0%     ~     (p=0.333 n=5+4)
PowInt-18               32.7ns ± 0%  32.7ns ± 0%     ~     (all equal)
PowFrac-18              33.2ns ± 0%  33.1ns ± 0%     ~     (p=0.095 n=4+5)
Pow10Pos-18             1.58ns ± 0%  1.58ns ± 0%     ~     (all equal)
Pow10Neg-18             5.81ns ± 0%  5.81ns ± 0%     ~     (all equal)
Round-18                0.78ns ± 0%  0.78ns ± 0%     ~     (all equal)
RoundToEven-18          0.78ns ± 0%  0.78ns ± 0%     ~     (all equal)
Remainder-18            40.6ns ± 0%  40.7ns ± 0%     ~     (p=0.238 n=5+4)
Signbit-18              1.57ns ± 0%  1.57ns ± 0%     ~     (all equal)
Sin-18                  6.75ns ± 0%  6.74ns ± 0%     ~     (p=0.333 n=5+4)
Sincos-18               29.5ns ± 0%  29.5ns ± 0%     ~     (all equal)
Sinh-18                 14.4ns ± 0%  14.4ns ± 0%     ~     (all equal)
SqrtIndirect-18         3.97ns ± 0%  4.15ns ± 0%   +4.59%  (p=0.008 n=5+5)
SqrtLatency-18          8.01ns ± 0%  8.01ns ± 0%     ~     (all equal)
SqrtIndirectLatency-18  11.6ns ± 0%  11.6ns ± 0%     ~     (all equal)
SqrtGoLatency-18        44.7ns ± 0%  45.0ns ± 0%   +0.67%  (p=0.008 n=5+5)
SqrtPrime-18            1.26µs ± 0%  1.27µs ± 0%   +0.63%  (p=0.029 n=4+4)
Tan-18                  11.1ns ± 0%  11.1ns ± 0%     ~     (all equal)
Tanh-18                 15.8ns ± 0%  15.8ns ± 0%     ~     (all equal)
Trunc-18                0.78ns ± 0%  0.78ns ± 0%     ~     (all equal)
Y0-18                    113ns ± 2%   108ns ± 3%   -5.11%  (p=0.008 n=5+5)
Y1-18                    112ns ± 3%   107ns ± 0%   -4.29%  (p=0.000 n=5+4)
Yn-18                    229ns ± 0%   220ns ± 1%   -3.76%  (p=0.016 n=4+5)
Float64bits-18          1.09ns ± 0%  1.09ns ± 0%     ~     (all equal)
Float64frombits-18      0.55ns ± 0%  0.55ns ± 0%     ~     (all equal)
Float32bits-18          0.96ns ±16%  0.86ns ± 0%     ~     (p=0.563 n=5+5)
Float32frombits-18      1.03ns ±28%  0.84ns ± 0%     ~     (p=0.167 n=5+5)
FMA-18                  1.60ns ± 0%  1.60ns ± 0%     ~     (all equal)
[Geo mean]              10.0ns        9.9ns        -0.41%
Change-Id: Ief7e63ea5a8ba404b0a4696e12b9b7e0b05a9a03
Reviewed-on: https://go-review.googlesource.com/c/go/+/209160
Reviewed-by: Michael Munday <mike.munday@ibm.com>
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2020-04-08 20:57:58 +00:00
Michael Munday
bfd569fcb0 cmd/compile: delete the floating point Greater and Geq ops 
Extend CL 220417 (which removed the integer Greater and Geq ops) to
floating point comparisons. Greater and Geq can always be
implemented using Less and Leq.

Fixes #37316.

Change-Id: Ieaddb4877dd0ff9037a1dd11d0a9a9e45ced71e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/222397
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
 2020-04-07 19:55:05 +00:00
Ruixin(Peter) Bao
16cfab8d89 cmd/compile: use load and test instructions on s390x 
The load and test instructions compare the given value
against zero and will produce a condition code indicating
one of the following scenarios:

0: Result is zero
1: Result is less than zero
2: Result is greater than zero
3: Result is not a number (NaN)

The instruction can be used to simplify floating point comparisons
against zero, which can enable further optimizations.

This CL also reduces the size of .text section of math.test binary by around
0.7 KB (in hexadecimal, from 1358f0 to 135620).

Change-Id: I33cb714f0c6feebac7a1c46dfcc735e7daceff9c
Reviewed-on: https://go-review.googlesource.com/c/go/+/209159
Reviewed-by: Michael Munday <mike.munday@ibm.com>
Run-TryBot: Michael Munday <mike.munday@ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2020-03-25 13:10:07 +00:00
fanzha02
822a9f537f cmd/compile: fix the error of absorbing boolean tests into block(FGE, FGT) 
The CL 164718 mistyped the comparison flags. The rules for floating
point comparison should be GreaterThanF and GreaterEqualF. Fortunately,
the wrong optimizations were overwritten by other integer rules, so the
issue won't cause failure but just some performance impact.

The fixed CL optimizes the floating point test as follows.

source code: func foo(f float64) bool { return f > 4 || f < -4}
previous version: "FCMPD", "CSET\tGT", "CBZ"
fixed version: "FCMPD", BLE"

Add the test case.

Change-Id: Iea954fdbb8272b2d642dae0f816dc77286e6e1fa
Reviewed-on: https://go-review.googlesource.com/c/go/+/177121
Reviewed-by: Ben Shi <powerman1st@163.com>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2019-05-16 13:46:25 +00:00
Lynn Boger
39fa301bdc test/codegen: enable more tests for ppc64/ppc64le 
Adding cases for ppc64,ppc64le to the codegen tests
where appropriate.

Change-Id: Idf8cbe88a4ab4406a4ef1ea777bd15a58b68f3ed
Reviewed-on: https://go-review.googlesource.com/c/142557
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2018-10-16 19:00:53 +00:00
Ben Shi
3785be3093 test/codegen: fix confusing test cases 
ARMv7's MULAF/MULSF/MULAD/MULSD are not fused,
this CL fixes the confusing test cases.

Change-Id: I35022e207e2f0d24a23a7f6f188e41ba8eee9886
Reviewed-on: https://go-review.googlesource.com/c/142439
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Akhil Indurti <aindurti@gmail.com>
Reviewed-by: Giovanni Bajo <rasky@develer.com>
 2018-10-16 07:17:02 +00:00
Ben Shi
93e27e01af test/codegen: add tests of FMA for arm/arm64 
This CL adds tests of fused multiplication-accumulation
on arm/arm64.

Change-Id: Ic85d5277c0d6acb7e1e723653372dfaf96824a39
Reviewed-on: https://go-review.googlesource.com/c/141652
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
 2018-10-15 14:51:30 +00:00
Ben Shi
3ca3e89bb6 cmd/compile: optimize arm64 with indexed FP load/store 
The FP load/store on arm64 have register indexed forms. And this
CL implements this optimization.

1. The total size of pkg/android_arm64 (excluding cmd/compile)
decreases about 400 bytes.

2. There is no regression in the go1 benchmark, the test case
GobEncode even gets slight improvement, excluding noise.

name                     old time/op    new time/op    delta
BinaryTree17-4              19.0s ± 0%     19.0s ± 1%    ~     (p=0.817 n=29+29)
Fannkuch11-4                9.94s ± 0%     9.95s ± 0%  +0.03%  (p=0.010 n=24+30)
FmtFprintfEmpty-4           233ns ± 0%     233ns ± 0%    ~     (all equal)
FmtFprintfString-4          427ns ± 0%     427ns ± 0%    ~     (p=0.649 n=30+30)
FmtFprintfInt-4             471ns ± 0%     471ns ± 0%    ~     (all equal)
FmtFprintfIntInt-4          730ns ± 0%     730ns ± 0%    ~     (all equal)
FmtFprintfPrefixedInt-4     889ns ± 0%     889ns ± 0%    ~     (all equal)
FmtFprintfFloat-4          1.21µs ± 0%    1.21µs ± 0%  +0.04%  (p=0.012 n=20+30)
FmtManyArgs-4              2.99µs ± 0%    2.99µs ± 0%    ~     (p=0.651 n=29+29)
GobDecode-4                42.4ms ± 1%    42.3ms ± 1%  -0.27%  (p=0.001 n=29+28)
GobEncode-4                37.8ms ±11%    36.0ms ± 0%  -4.67%  (p=0.000 n=30+26)
Gzip-4                      1.98s ± 1%     1.96s ± 1%  -1.26%  (p=0.000 n=30+30)
Gunzip-4                    175ms ± 0%     175ms ± 0%    ~     (p=0.988 n=29+29)
HTTPClientServer-4          854µs ± 5%     860µs ± 5%    ~     (p=0.236 n=28+29)
JSONEncode-4               88.8ms ± 0%    87.9ms ± 0%  -1.00%  (p=0.000 n=24+26)
JSONDecode-4                390ms ± 1%     392ms ± 2%  +0.48%  (p=0.025 n=30+30)
Mandelbrot200-4            19.5ms ± 0%    19.5ms ± 0%    ~     (p=0.894 n=24+29)
GoParse-4                  20.3ms ± 0%    20.1ms ± 1%  -0.94%  (p=0.000 n=27+26)
RegexpMatchEasy0_32-4       451ns ± 0%     451ns ± 0%    ~     (p=0.578 n=30+30)
RegexpMatchEasy0_1K-4      1.63µs ± 0%    1.63µs ± 0%    ~     (p=0.298 n=30+28)
RegexpMatchEasy1_32-4       431ns ± 0%     434ns ± 0%  +0.67%  (p=0.000 n=30+29)
RegexpMatchEasy1_1K-4      2.60µs ± 0%    2.64µs ± 0%  +1.36%  (p=0.000 n=28+26)
RegexpMatchMedium_32-4      744ns ± 0%     744ns ± 0%    ~     (p=0.474 n=29+29)
RegexpMatchMedium_1K-4      223µs ± 0%     223µs ± 0%  -0.08%  (p=0.038 n=26+30)
RegexpMatchHard_32-4       12.2µs ± 0%    12.3µs ± 0%  +0.27%  (p=0.000 n=29+30)
RegexpMatchHard_1K-4        373µs ± 0%     373µs ± 0%    ~     (p=0.219 n=29+28)
Revcomp-4                   2.84s ± 0%     2.84s ± 0%    ~     (p=0.130 n=28+28)
Template-4                  394ms ± 1%     392ms ± 1%  -0.52%  (p=0.001 n=30+30)
TimeParse-4                1.93µs ± 0%    1.93µs ± 0%    ~     (p=0.587 n=29+30)
TimeFormat-4               2.00µs ± 0%    2.00µs ± 0%  +0.07%  (p=0.001 n=28+27)
[Geo mean]                  306µs          305µs       -0.17%

name                     old speed      new speed      delta
GobDecode-4              18.1MB/s ± 1%  18.2MB/s ± 1%  +0.27%  (p=0.001 n=29+28)
GobEncode-4              20.3MB/s ±10%  21.3MB/s ± 0%  +4.64%  (p=0.000 n=30+26)
Gzip-4                   9.79MB/s ± 1%  9.91MB/s ± 1%  +1.28%  (p=0.000 n=30+30)
Gunzip-4                  111MB/s ± 0%   111MB/s ± 0%    ~     (p=0.988 n=29+29)
JSONEncode-4             21.8MB/s ± 0%  22.1MB/s ± 0%  +1.02%  (p=0.000 n=24+26)
JSONDecode-4             4.97MB/s ± 1%  4.95MB/s ± 2%  -0.45%  (p=0.031 n=30+30)
GoParse-4                2.85MB/s ± 1%  2.88MB/s ± 1%  +1.03%  (p=0.000 n=30+26)
RegexpMatchEasy0_32-4    70.9MB/s ± 0%  70.9MB/s ± 0%    ~     (p=0.904 n=29+28)
RegexpMatchEasy0_1K-4     627MB/s ± 0%   627MB/s ± 0%    ~     (p=0.156 n=30+30)
RegexpMatchEasy1_32-4    74.2MB/s ± 0%  73.7MB/s ± 0%  -0.67%  (p=0.000 n=30+29)
RegexpMatchEasy1_1K-4     393MB/s ± 0%   388MB/s ± 0%  -1.34%  (p=0.000 n=28+26)
RegexpMatchMedium_32-4   1.34MB/s ± 0%  1.34MB/s ± 0%    ~     (all equal)
RegexpMatchMedium_1K-4   4.59MB/s ± 0%  4.59MB/s ± 0%  +0.07%  (p=0.035 n=25+30)
RegexpMatchHard_32-4     2.61MB/s ± 0%  2.61MB/s ± 0%  -0.11%  (p=0.002 n=28+30)
RegexpMatchHard_1K-4     2.75MB/s ± 0%  2.75MB/s ± 0%  +0.15%  (p=0.001 n=30+24)
Revcomp-4                89.4MB/s ± 0%  89.4MB/s ± 0%    ~     (p=0.140 n=28+28)
Template-4               4.93MB/s ± 1%  4.95MB/s ± 1%  +0.51%  (p=0.001 n=30+30)
[Geo mean]               18.4MB/s       18.4MB/s       +0.37%

Change-Id: I9a6b521a971b21cfb51064e8e9b853cef8a1d071
Reviewed-on: https://go-review.googlesource.com/124636
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
 2018-08-28 02:37:18 +00:00
Ben Shi
e03220a594 cmd/compile: optimize 386 code with FLDPI 
FLDPI pushes the constant pi to 387's register stack, which is
more efficient than MOVSSconst/MOVSDconst.

1. This optimization reduces 0.3KB of the total size of pkg/linux_386
(exlcuding cmd/compile).

2. There is little regression in the go1 benchmark.
name                     old time/op    new time/op    delta
BinaryTree17-4              3.30s ± 3%     3.30s ± 2%    ~     (p=0.759 n=40+39)
Fannkuch11-4                3.53s ± 1%     3.54s ± 1%    ~     (p=0.168 n=40+40)
FmtFprintfEmpty-4          45.5ns ± 3%    45.6ns ± 3%    ~     (p=0.553 n=40+40)
FmtFprintfString-4         78.4ns ± 3%    78.3ns ± 3%    ~     (p=0.593 n=40+40)
FmtFprintfInt-4            88.8ns ± 2%    89.9ns ± 2%    ~     (p=0.083 n=40+33)
FmtFprintfIntInt-4          140ns ± 4%     140ns ± 4%    ~     (p=0.656 n=40+40)
FmtFprintfPrefixedInt-4     180ns ± 2%     181ns ± 3%  +0.53%  (p=0.050 n=40+40)
FmtFprintfFloat-4           408ns ± 4%     411ns ± 3%    ~     (p=0.112 n=40+40)
FmtManyArgs-4               599ns ± 3%     602ns ± 3%    ~     (p=0.784 n=40+40)
GobDecode-4                7.24ms ± 6%    7.30ms ± 5%    ~     (p=0.171 n=40+40)
GobEncode-4                6.98ms ± 5%    6.89ms ± 8%    ~     (p=0.107 n=40+40)
Gzip-4                      396ms ± 4%     396ms ± 3%    ~     (p=0.852 n=40+40)
Gunzip-4                   41.3ms ± 3%    41.5ms ± 4%    ~     (p=0.221 n=40+40)
HTTPClientServer-4         63.4µs ± 3%    63.4µs ± 2%    ~     (p=0.895 n=39+40)
JSONEncode-4               17.5ms ± 2%    17.5ms ± 3%    ~     (p=0.090 n=40+40)
JSONDecode-4               60.6ms ± 3%    60.1ms ± 4%    ~     (p=0.184 n=40+40)
Mandelbrot200-4            7.80ms ± 3%    7.78ms ± 2%    ~     (p=0.512 n=40+40)
GoParse-4                  3.30ms ± 3%    3.28ms ± 2%  -0.61%  (p=0.034 n=40+40)
RegexpMatchEasy0_32-4       104ns ± 4%     103ns ± 4%    ~     (p=0.118 n=40+40)
RegexpMatchEasy0_1K-4       850ns ± 2%     848ns ± 2%    ~     (p=0.370 n=40+40)
RegexpMatchEasy1_32-4       112ns ± 4%     112ns ± 4%    ~     (p=0.848 n=40+40)
RegexpMatchEasy1_1K-4      1.04µs ± 4%    1.03µs ± 4%    ~     (p=0.333 n=40+40)
RegexpMatchMedium_32-4      132ns ± 4%     131ns ± 3%    ~     (p=0.527 n=40+40)
RegexpMatchMedium_1K-4     43.4µs ± 3%    43.5µs ± 3%    ~     (p=0.111 n=40+40)
RegexpMatchHard_32-4       2.24µs ± 4%    2.24µs ± 4%    ~     (p=0.441 n=40+40)
RegexpMatchHard_1K-4       67.9µs ± 3%    68.0µs ± 3%    ~     (p=0.095 n=40+40)
Revcomp-4                   1.84s ± 2%     1.84s ± 2%    ~     (p=0.677 n=40+40)
Template-4                 68.4ms ± 3%    68.6ms ± 3%    ~     (p=0.345 n=40+40)
TimeParse-4                 433ns ± 3%     433ns ± 3%    ~     (p=0.403 n=40+40)
TimeFormat-4                407ns ± 3%     406ns ± 3%    ~     (p=0.900 n=40+40)
[Geo mean]                 67.1µs         67.2µs       +0.04%

name                     old speed      new speed      delta
GobDecode-4               106MB/s ± 5%   105MB/s ± 5%    ~     (p=0.173 n=40+40)
GobEncode-4               110MB/s ± 5%   112MB/s ± 9%    ~     (p=0.104 n=40+40)
Gzip-4                   49.0MB/s ± 4%  49.1MB/s ± 4%    ~     (p=0.836 n=40+40)
Gunzip-4                  471MB/s ± 3%   468MB/s ± 4%    ~     (p=0.218 n=40+40)
JSONEncode-4              111MB/s ± 2%   111MB/s ± 3%    ~     (p=0.090 n=40+40)
JSONDecode-4             32.0MB/s ± 3%  32.3MB/s ± 4%    ~     (p=0.194 n=40+40)
GoParse-4                17.6MB/s ± 3%  17.7MB/s ± 2%  +0.62%  (p=0.035 n=40+40)
RegexpMatchEasy0_32-4     307MB/s ± 4%   309MB/s ± 4%  +0.70%  (p=0.041 n=40+40)
RegexpMatchEasy0_1K-4    1.20GB/s ± 3%  1.21GB/s ± 2%    ~     (p=0.353 n=40+40)
RegexpMatchEasy1_32-4     285MB/s ± 3%   284MB/s ± 4%    ~     (p=0.384 n=40+40)
RegexpMatchEasy1_1K-4     988MB/s ± 4%   992MB/s ± 3%    ~     (p=0.335 n=40+40)
RegexpMatchMedium_32-4   7.56MB/s ± 4%  7.57MB/s ± 4%    ~     (p=0.314 n=40+40)
RegexpMatchMedium_1K-4   23.6MB/s ± 3%  23.6MB/s ± 3%    ~     (p=0.107 n=40+40)
RegexpMatchHard_32-4     14.3MB/s ± 4%  14.3MB/s ± 4%    ~     (p=0.429 n=40+40)
RegexpMatchHard_1K-4     15.1MB/s ± 3%  15.1MB/s ± 3%    ~     (p=0.099 n=40+40)
Revcomp-4                 138MB/s ± 2%   138MB/s ± 2%    ~     (p=0.658 n=40+40)
Template-4               28.4MB/s ± 3%  28.3MB/s ± 3%    ~     (p=0.331 n=40+40)
[Geo mean]               80.8MB/s       80.8MB/s       +0.09%

Change-Id: I0cb715eead68ade097a302e7fb80ccbd1d1b511e
Reviewed-on: https://go-review.googlesource.com/130975
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
 2018-08-25 02:39:49 +00:00
Giovanni Bajo
284ba47b49 test: run codegen tests on all supported architecture variants 
This CL makes the codegen testsuite automatically test all
architecture variants for architecture specified in tests. For
instance, if a test file specifies a "arm" test, it will be
automatically run on all GOARM variants (5,6,7), to increase
the coverage.

The CL also introduces a syntax to specify only a specific
variant (eg: "arm/7") in case the test makes sense only there.
The same syntax also allows to specify the operating system
in case it matters (eg: "plan9/386/sse2").

Fixes #24658

Change-Id: I2eba8b918f51bb6a77a8431a309f8b71af07ea22
Reviewed-on: https://go-review.googlesource.com/107315
Run-TryBot: Giovanni Bajo <rasky@develer.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2018-04-15 20:02:43 +00:00
Giovanni Bajo
01aa1d7dbe test: migrate plan9 tests to codegen 
And remove it from asmtest. Next CL will remove the whole
asmtest infrastructure.

Change-Id: I5851bf7c617456d62a3c6cffacf70252df7b056b
Reviewed-on: https://go-review.googlesource.com/107335
Run-TryBot: Giovanni Bajo <rasky@develer.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2018-04-15 20:02:30 +00:00
Alberto Donizetti
56eaf574a1 test/codegen: match 387 ops too for GOARCH=386 
Change-Id: I99407e27e340689009af798989b33cef7cb92070
Reviewed-on: https://go-review.googlesource.com/103376
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2018-03-29 20:05:40 +00:00
Alberto Donizetti
cceee685be test/codegen: port floats tests to codegen 
And delete them from asm_test.

Change-Id: Ibdaca3496eefc73c731b511ddb9636a1f3dff68c
Reviewed-on: https://go-review.googlesource.com/100915
Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
 2018-03-15 18:05:59 +00:00