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6 Commits

Author SHA1 Message Date
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