- 08 May, 2018 12 commits
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Richard Miller authored
To avoid allocation between entersyscall and exitsyscall in Plan 9, syscall error strings retrieved from the OS were being stored in a shared buffer for each M, leading to overwriting of error strings by subsequent syscalls, and potential confusion if exitsyscall switched to a different M. Instead, the error string is now retrieved to the G stack and then copied to a new allocated array after exitsyscall. A new test TestPlan9Syserr is provided to confirm the correction. Fixes #13770 Fixes #24921 Change-Id: I013c4a42baae80d03a5b61d828396527189f5551 Reviewed-on: https://go-review.googlesource.com/111195Reviewed-by:
David du Colombier <0intro@gmail.com> Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: David du Colombier <0intro@gmail.com>
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Tobias Klauser authored
Provide a complete list of EM_* and ELFOSABI_* constants. Compiled from the tables at http://www.sco.com/developers/gabi/latest/ch4.eheader.html and llvm/BinaryFormat/ELF.h from LLVM. Change-Id: Ice1e1476076fafdb8bb8af848caec6d80a82c452 Reviewed-on: https://go-review.googlesource.com/112115 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by:
Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Joe Kyo authored
intDataSize should return length of bool slice, so functions Read and Write can use the fast path to process bool slice. Change-Id: I8cd275e3ffea82024850662d86caca64bd91bf70 Reviewed-on: https://go-review.googlesource.com/112135Reviewed-by:
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Tobias Klauser authored
Use nodl instead of nod to avoid setting and resetting lineo. Passes toolstash-check. Updates #19683 Change-Id: I6a47a7ba43a11352767029eced29f08dff8501a2 Reviewed-on: https://go-review.googlesource.com/100335 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Josh Bleecher Snyder <josharian@gmail.com>
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Richard Musiol authored
This commit adds the wasm architecture to the math package. Updates #18892 Change-Id: I5cc38552a31b193d35fb81ae87600a76b8b9e9b5 Reviewed-on: https://go-review.googlesource.com/106996Reviewed-by:
Cherry Zhang <cherryyz@google.com>
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Richard Musiol authored
This commit adds the wasm architecture to the internal/bytealg package. Some parts of the assembly code have been extracted from WebAssembly bytecode generated with Emscripten (which uses musl libc). Updates #18892 Change-Id: Iba7f7158356b816c9ad03ca9223903a41a024da6 Reviewed-on: https://go-review.googlesource.com/103915Reviewed-by:
Keith Randall <khr@golang.org>
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Lynn Boger authored
CL 74410 added rules to combine consecutive byte loads and stores when the byte order was little endian for ppc64le. This is the corresponding change for bytes that are in big endian order. These rules are all intended for a little endian target arch. This adds new testcases in test/codegen/memcombine.go Fixes #22496 Updates #24242 Benchmark improvement for encoding/binary: name old time/op new time/op delta ReadSlice1000Int32s-16 11.0µs ± 0% 9.0µs ± 0% -17.47% (p=0.029 n=4+4) ReadStruct-16 2.47µs ± 1% 2.48µs ± 0% +0.67% (p=0.114 n=4+4) ReadInts-16 642ns ± 1% 630ns ± 1% -2.02% (p=0.029 n=4+4) WriteInts-16 654ns ± 0% 653ns ± 1% -0.08% (p=0.629 n=4+4) WriteSlice1000Int32s-16 8.75µs ± 0% 8.20µs ± 0% -6.19% (p=0.029 n=4+4) PutUint16-16 1.16ns ± 0% 0.93ns ± 0% -19.83% (p=0.029 n=4+4) PutUint32-16 1.16ns ± 0% 0.93ns ± 0% -19.83% (p=0.029 n=4+4) PutUint64-16 1.85ns ± 0% 0.93ns ± 0% -49.73% (p=0.029 n=4+4) LittleEndianPutUint16-16 1.03ns ± 0% 0.93ns ± 0% -9.71% (p=0.029 n=4+4) LittleEndianPutUint32-16 0.93ns ± 0% 0.93ns ± 0% ~ (all equal) LittleEndianPutUint64-16 0.93ns ± 0% 0.93ns ± 0% ~ (all equal) PutUvarint32-16 43.0ns ± 0% 43.1ns ± 0% +0.12% (p=0.429 n=4+4) PutUvarint64-16 174ns ± 0% 175ns ± 0% +0.29% (p=0.429 n=4+4) Updates made to functions in gcm.go to enable their matching. An existing testcase prevents these functions from being replaced by those in encoding/binary due to import dependencies. Change-Id: Idb3bd1e6e7b12d86cd828fb29cb095848a3e485a Reviewed-on: https://go-review.googlesource.com/98136 Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Michael Munday authored
Propagate values through some wide Zero/Move operations. Among other things this allows us to optimize some kinds of array initialization. For example, the following code no longer requires a temporary be allocated on the stack. Instead it writes the values directly into the return value. func f(i uint32) [4]uint32 { return [4]uint32{i, i+1, i+2, i+3} } The return value is unnecessarily cleared but removing that is probably a task for dead store analysis (I think it needs to be able to match multiple Store ops to wide Zero ops). In order to reliably remove stack variables that are rendered unnecessary by these new rules I've added a new generic version of the unread autos elimination pass. These rules are triggered more than 5000 times when building and testing the standard library. Updates #15925 (fixes for arrays of up to 4 elements). Updates #24386 (fixes for up to 4 kept elements). Updates #24416. compilebench results: name old time/op new time/op delta Template 353ms ± 5% 359ms ± 3% ~ (p=0.143 n=10+10) Unicode 219ms ± 1% 217ms ± 4% ~ (p=0.740 n=7+10) GoTypes 1.26s ± 1% 1.26s ± 2% ~ (p=0.549 n=9+10) Compiler 6.00s ± 1% 6.08s ± 1% +1.42% (p=0.000 n=9+8) SSA 15.3s ± 2% 15.6s ± 1% +2.43% (p=0.000 n=10+10) Flate 237ms ± 2% 240ms ± 2% +1.31% (p=0.015 n=10+10) GoParser 285ms ± 1% 285ms ± 1% ~ (p=0.878 n=8+8) Reflect 797ms ± 3% 807ms ± 2% ~ (p=0.065 n=9+10) Tar 334ms ± 0% 335ms ± 4% ~ (p=0.460 n=8+10) XML 419ms ± 0% 423ms ± 1% +0.91% (p=0.001 n=7+9) StdCmd 46.0s ± 0% 46.4s ± 0% +0.85% (p=0.000 n=9+9) name old user-time/op new user-time/op delta Template 337ms ± 3% 346ms ± 5% ~ (p=0.053 n=9+10) Unicode 205ms ±10% 205ms ± 8% ~ (p=1.000 n=10+10) GoTypes 1.22s ± 2% 1.21s ± 3% ~ (p=0.436 n=10+10) Compiler 5.85s ± 1% 5.93s ± 0% +1.46% (p=0.000 n=10+8) SSA 14.9s ± 1% 15.3s ± 1% +2.62% (p=0.000 n=10+10) Flate 229ms ± 4% 228ms ± 6% ~ (p=0.796 n=10+10) GoParser 271ms ± 3% 275ms ± 4% ~ (p=0.165 n=10+10) Reflect 779ms ± 5% 775ms ± 2% ~ (p=0.971 n=10+10) Tar 317ms ± 4% 319ms ± 5% ~ (p=0.853 n=10+10) XML 404ms ± 4% 409ms ± 5% ~ (p=0.436 n=10+10) name old alloc/op new alloc/op delta Template 34.9MB ± 0% 35.0MB ± 0% +0.26% (p=0.000 n=10+10) Unicode 29.3MB ± 0% 29.3MB ± 0% +0.02% (p=0.000 n=10+10) GoTypes 115MB ± 0% 115MB ± 0% +0.30% (p=0.000 n=10+10) Compiler 519MB ± 0% 521MB ± 0% +0.30% (p=0.000 n=10+10) SSA 1.55GB ± 0% 1.57GB ± 0% +1.34% (p=0.000 n=10+9) Flate 24.1MB ± 0% 24.2MB ± 0% +0.10% (p=0.000 n=10+10) GoParser 28.1MB ± 0% 28.1MB ± 0% +0.07% (p=0.000 n=10+10) Reflect 78.7MB ± 0% 78.7MB ± 0% +0.03% (p=0.000 n=8+10) Tar 34.4MB ± 0% 34.5MB ± 0% +0.12% (p=0.000 n=10+10) XML 43.2MB ± 0% 43.2MB ± 0% +0.13% (p=0.000 n=10+10) name old allocs/op new allocs/op delta Template 330k ± 0% 330k ± 0% -0.01% (p=0.017 n=10+10) Unicode 337k ± 0% 337k ± 0% +0.01% (p=0.000 n=9+10) GoTypes 1.15M ± 0% 1.15M ± 0% +0.03% (p=0.000 n=10+10) Compiler 4.77M ± 0% 4.77M ± 0% +0.03% (p=0.000 n=9+10) SSA 12.5M ± 0% 12.6M ± 0% +1.16% (p=0.000 n=10+10) Flate 221k ± 0% 221k ± 0% +0.05% (p=0.000 n=9+10) GoParser 275k ± 0% 275k ± 0% +0.01% (p=0.014 n=10+9) Reflect 944k ± 0% 944k ± 0% -0.02% (p=0.000 n=10+10) Tar 324k ± 0% 323k ± 0% -0.12% (p=0.000 n=10+10) XML 384k ± 0% 384k ± 0% -0.01% (p=0.001 n=10+10) name old object-bytes new object-bytes delta Template 476kB ± 0% 476kB ± 0% -0.04% (p=0.000 n=10+10) Unicode 218kB ± 0% 218kB ± 0% ~ (all equal) GoTypes 1.58MB ± 0% 1.58MB ± 0% -0.04% (p=0.000 n=10+10) Compiler 6.25MB ± 0% 6.24MB ± 0% -0.09% (p=0.000 n=10+10) SSA 15.9MB ± 0% 16.1MB ± 0% +1.22% (p=0.000 n=10+10) Flate 304kB ± 0% 304kB ± 0% -0.13% (p=0.000 n=10+10) GoParser 370kB ± 0% 370kB ± 0% -0.00% (p=0.000 n=10+10) Reflect 1.27MB ± 0% 1.27MB ± 0% -0.12% (p=0.000 n=10+10) Tar 421kB ± 0% 419kB ± 0% -0.64% (p=0.000 n=10+10) XML 518kB ± 0% 517kB ± 0% -0.12% (p=0.000 n=10+10) name old export-bytes new export-bytes delta Template 16.7kB ± 0% 16.7kB ± 0% ~ (all equal) Unicode 6.52kB ± 0% 6.52kB ± 0% ~ (all equal) GoTypes 29.2kB ± 0% 29.2kB ± 0% ~ (all equal) Compiler 88.0kB ± 0% 88.0kB ± 0% ~ (all equal) SSA 109kB ± 0% 109kB ± 0% ~ (all equal) Flate 4.49kB ± 0% 4.49kB ± 0% ~ (all equal) GoParser 8.10kB ± 0% 8.10kB ± 0% ~ (all equal) Reflect 7.71kB ± 0% 7.71kB ± 0% ~ (all equal) Tar 9.15kB ± 0% 9.15kB ± 0% ~ (all equal) XML 12.3kB ± 0% 12.3kB ± 0% ~ (all equal) name old text-bytes new text-bytes delta HelloSize 676kB ± 0% 672kB ± 0% -0.59% (p=0.000 n=10+10) CmdGoSize 7.26MB ± 0% 7.24MB ± 0% -0.18% (p=0.000 n=10+10) name old data-bytes new data-bytes delta HelloSize 10.2kB ± 0% 10.2kB ± 0% ~ (all equal) CmdGoSize 248kB ± 0% 248kB ± 0% ~ (all equal) name old bss-bytes new bss-bytes delta HelloSize 125kB ± 0% 125kB ± 0% ~ (all equal) CmdGoSize 145kB ± 0% 145kB ± 0% ~ (all equal) name old exe-bytes new exe-bytes delta HelloSize 1.46MB ± 0% 1.45MB ± 0% -0.31% (p=0.000 n=10+10) CmdGoSize 14.7MB ± 0% 14.7MB ± 0% -0.17% (p=0.000 n=10+10) Change-Id: Ic72b0c189dd542f391e1c9ab88a76e9148dc4285 Reviewed-on: https://go-review.googlesource.com/106495 Run-TryBot: Michael Munday <mike.munday@ibm.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: -
Ben Shi authored
ADDL/SUBL/ANDL/ORL/XORL can have a memory operand as destination, and this CL optimize the compiler to emit such instructions on 386 for more compact binary. Here is test report: 1. The total size of pkg/linux_386/ and pkg/tool/linux_386/ decreases about 14KB. (pkg/linux_386/cmd/compile/ and pkg/tool/linux_386/compile are excluded) 2. The go1 benchmark shows little change, excluding ±2% noise. name old time/op new time/op delta BinaryTree17-4 3.34s ± 2% 3.38s ± 2% +1.27% (p=0.000 n=40+39) Fannkuch11-4 3.55s ± 1% 3.51s ± 1% -1.33% (p=0.000 n=40+40) FmtFprintfEmpty-4 46.3ns ± 3% 46.9ns ± 4% +1.41% (p=0.002 n=40+40) FmtFprintfString-4 80.8ns ± 3% 80.4ns ± 6% -0.54% (p=0.044 n=40+40) FmtFprintfInt-4 93.0ns ± 3% 92.2ns ± 4% -0.88% (p=0.007 n=39+40) FmtFprintfIntInt-4 144ns ± 5% 145ns ± 2% +0.78% (p=0.015 n=40+40) FmtFprintfPrefixedInt-4 184ns ± 2% 182ns ± 2% -1.06% (p=0.004 n=40+40) FmtFprintfFloat-4 415ns ± 4% 419ns ± 4% ~ (p=0.434 n=40+40) FmtManyArgs-4 615ns ± 3% 619ns ± 3% ~ (p=0.100 n=40+40) GobDecode-4 7.30ms ± 6% 7.36ms ± 6% ~ (p=0.074 n=40+40) GobEncode-4 7.10ms ± 6% 7.21ms ± 5% ~ (p=0.082 n=40+39) Gzip-4 364ms ± 3% 362ms ± 6% -0.71% (p=0.020 n=40+40) Gunzip-4 42.4ms ± 3% 42.2ms ± 3% ~ (p=0.303 n=40+40) HTTPClientServer-4 62.9µs ± 1% 62.9µs ± 1% ~ (p=0.768 n=38+39) JSONEncode-4 21.4ms ± 4% 21.5ms ± 5% ~ (p=0.210 n=40+40) JSONDecode-4 67.7ms ± 3% 67.9ms ± 4% ~ (p=0.713 n=40+40) Mandelbrot200-4 5.18ms ± 3% 5.21ms ± 3% +0.59% (p=0.021 n=40+40) GoParse-4 3.35ms ± 3% 3.34ms ± 2% ~ (p=0.996 n=40+40) RegexpMatchEasy0_32-4 98.5ns ± 5% 96.3ns ± 4% -2.15% (p=0.001 n=40+40) RegexpMatchEasy0_1K-4 851ns ± 4% 850ns ± 5% ~ (p=0.700 n=40+40) RegexpMatchEasy1_32-4 105ns ± 7% 107ns ± 4% +1.50% (p=0.017 n=40+40) RegexpMatchEasy1_1K-4 1.03µs ± 5% 1.03µs ± 4% ~ (p=0.992 n=40+40) RegexpMatchMedium_32-4 130ns ± 6% 128ns ± 4% -1.66% (p=0.012 n=40+40) RegexpMatchMedium_1K-4 44.0µs ± 5% 43.6µs ± 3% ~ (p=0.704 n=40+40) RegexpMatchHard_32-4 2.29µs ± 3% 2.23µs ± 4% -2.38% (p=0.000 n=40+40) RegexpMatchHard_1K-4 69.0µs ± 3% 68.1µs ± 3% -1.28% (p=0.003 n=40+40) Revcomp-4 1.85s ± 2% 1.87s ± 3% +1.11% (p=0.000 n=40+40) Template-4 69.8ms ± 3% 69.6ms ± 3% ~ (p=0.125 n=40+40) TimeParse-4 442ns ± 5% 440ns ± 3% ~ (p=0.585 n=40+40) TimeFormat-4 419ns ± 3% 420ns ± 3% ~ (p=0.824 n=40+40) [Geo mean] 67.3µs 67.2µs -0.11% name old speed new speed delta GobDecode-4 105MB/s ± 6% 104MB/s ± 6% ~ (p=0.074 n=40+40) GobEncode-4 108MB/s ± 7% 107MB/s ± 5% ~ (p=0.080 n=40+39) Gzip-4 53.3MB/s ± 3% 53.7MB/s ± 6% +0.73% (p=0.021 n=40+40) Gunzip-4 458MB/s ± 3% 460MB/s ± 3% ~ (p=0.301 n=40+40) JSONEncode-4 90.8MB/s ± 4% 90.3MB/s ± 4% ~ (p=0.213 n=40+40) JSONDecode-4 28.7MB/s ± 3% 28.6MB/s ± 4% ~ (p=0.679 n=40+40) GoParse-4 17.3MB/s ± 3% 17.3MB/s ± 2% ~ (p=1.000 n=40+40) RegexpMatchEasy0_32-4 325MB/s ± 5% 333MB/s ± 4% +2.44% (p=0.000 n=40+38) RegexpMatchEasy0_1K-4 1.20GB/s ± 4% 1.21GB/s ± 5% ~ (p=0.684 n=40+40) RegexpMatchEasy1_32-4 303MB/s ± 7% 298MB/s ± 4% -1.52% (p=0.022 n=40+40) RegexpMatchEasy1_1K-4 995MB/s ± 5% 996MB/s ± 4% ~ (p=0.996 n=40+40) RegexpMatchMedium_32-4 7.67MB/s ± 6% 7.80MB/s ± 4% +1.68% (p=0.011 n=40+40) RegexpMatchMedium_1K-4 23.3MB/s ± 5% 23.5MB/s ± 3% ~ (p=0.697 n=40+40) RegexpMatchHard_32-4 14.0MB/s ± 3% 14.3MB/s ± 4% +2.43% (p=0.000 n=40+40) RegexpMatchHard_1K-4 14.8MB/s ± 3% 15.0MB/s ± 3% +1.30% (p=0.003 n=40+40) Revcomp-4 137MB/s ± 2% 136MB/s ± 3% -1.10% (p=0.000 n=40+40) Template-4 27.8MB/s ± 3% 27.9MB/s ± 3% ~ (p=0.128 n=40+40) [Geo mean] 79.6MB/s 79.9MB/s +0.28% Change-Id: I02a3efc125dc81e18fc8495eb2bf1bba59ab8733 Reviewed-on: https://go-review.googlesource.com/110157 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Ilya Tocar <ilya.tocar@intel.com>
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Shengyu Zhang authored
Fixes #23675 Change-Id: I78e13d1ca90400e4dd48674b93bb6e2e30718d97 GitHub-Last-Rev: f2b3a59d2bd92f28fc06360e7920c37b9da0af01 GitHub-Pull-Request: golang/go#25287 Reviewed-on: https://go-review.googlesource.com/112037Reviewed-by:
Robert Griesemer <gri@golang.org> Run-TryBot: Robert Griesemer <gri@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Richard Musiol authored
This commit adds the js/wasm architecture to the runtime package. Currently WebAssembly has no support for threads yet, see https://github.com/WebAssembly/design/issues/1073. Because of that, there is no preemption of goroutines and no sysmon goroutine. Design doc: https://docs.google.com/document/d/131vjr4DH6JFnb-blm_uRdaC0_Nv3OUwjEY5qVCxCup4 About WebAssembly assembly files: https://docs.google.com/document/d/1GRmy3rA4DiYtBlX-I1Jr_iHykbX8EixC3Mq0TCYqbKc Updates #18892 Change-Id: I7f12d21b5180500d55ae9fd2f7e926a1731db391 Reviewed-on: https://go-review.googlesource.com/103877 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Austin Clements <austin@google.com>
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Cherry Zhang authored
The rule generator expects the rule file name matches the arch's name defined in https://go.googlesource.com/go/+/b1df8d6ffa2c4c5be567934bd44432fff8f3c4a7/src/cmd/compile/internal/ssa/gen/WASMOps.go#197 Rename the file to match. Also rename WASMOps.go for consistency. Fixes #25282. Change-Id: I35c4bb2659fe67650933eb0ebf95778974511385 Reviewed-on: https://go-review.googlesource.com/111975 Run-TryBot: Cherry Zhang <cherryyz@google.com> Reviewed-by:
Richard Musiol <neelance@gmail.com> Reviewed-by:
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- 07 May, 2018 13 commits
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Richard Musiol authored
This commit adds the wasm architecture to the link command. Design doc: https://docs.google.com/document/d/131vjr4DH6JFnb-blm_uRdaC0_Nv3OUwjEY5qVCxCup4 Updates #18892 Change-Id: I5aef29954984537f2979679b5d393209e462f564 Reviewed-on: https://go-review.googlesource.com/103795 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Ilya Tocar authored
We were spending more time in duffcopy than in the String method. Avoid creating a copy of test struct to make benchmark measure performance of String() itself. IPString/IPv4-8 113ns ± 0% 57ns ± 1% -49.83% (p=0.000 n=8+10) IPString/IPv6-8 972ns ± 1% 915ns ± 1% -5.88% (p=0.000 n=9+10) Change-Id: I5ceff2caa1b8288c43f0cf6c6b3809ca523af1fa Reviewed-on: https://go-review.googlesource.com/111881 Run-TryBot: Ilya Tocar <ilya.tocar@intel.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Josh Bleecher Snyder authored
This should improve some 32 bit arithmetic operations. During make.bash, this increases the number of rules firing by 15518: $ wc -l rulelog-* 13490514 rulelog-head 13474996 rulelog-master compress/flate benchmarks: name old time/op new time/op delta Decode/Digits/Huffman/1e4-8 103µs ± 4% 102µs ± 0% -0.95% (p=0.000 n=30+27) Decode/Digits/Huffman/1e5-8 962µs ± 2% 954µs ± 1% -0.80% (p=0.000 n=25+25) Decode/Digits/Huffman/1e6-8 9.55ms ± 1% 9.50ms ± 1% -0.57% (p=0.000 n=29+29) Decode/Digits/Speed/1e4-8 110µs ± 2% 110µs ± 2% -0.41% (p=0.003 n=28+30) Decode/Digits/Speed/1e5-8 1.15ms ± 1% 1.14ms ± 1% -0.85% (p=0.000 n=29+28) Decode/Digits/Speed/1e6-8 11.5ms ± 2% 11.4ms ± 1% -1.26% (p=0.000 n=28+27) Decode/Digits/Default/1e4-8 113µs ± 1% 112µs ± 1% -0.49% (p=0.001 n=27+30) Decode/Digits/Default/1e5-8 1.13ms ± 0% 1.12ms ± 1% -0.75% (p=0.000 n=26+24) Decode/Digits/Default/1e6-8 11.1ms ± 1% 11.1ms ± 1% -0.47% (p=0.000 n=28+27) Decode/Digits/Compression/1e4-8 113µs ± 1% 112µs ± 1% -0.70% (p=0.000 n=28+29) Decode/Digits/Compression/1e5-8 1.13ms ± 2% 1.12ms ± 1% -1.41% (p=0.000 n=28+26) Decode/Digits/Compression/1e6-8 11.1ms ± 1% 11.1ms ± 1% -0.33% (p=0.002 n=29+27) Decode/Twain/Huffman/1e4-8 115µs ± 1% 115µs ± 1% -0.40% (p=0.000 n=28+26) Decode/Twain/Huffman/1e5-8 1.05ms ± 1% 1.04ms ± 0% -0.41% (p=0.000 n=27+25) Decode/Twain/Huffman/1e6-8 10.4ms ± 1% 10.4ms ± 1% ~ (p=0.993 n=28+24) Decode/Twain/Speed/1e4-8 118µs ± 2% 116µs ± 1% -1.08% (p=0.000 n=27+29) Decode/Twain/Speed/1e5-8 1.07ms ± 1% 1.07ms ± 1% -0.23% (p=0.041 n=26+27) Decode/Twain/Speed/1e6-8 10.6ms ± 1% 10.5ms ± 0% -0.68% (p=0.000 n=29+27) Decode/Twain/Default/1e4-8 110µs ± 1% 109µs ± 0% -0.49% (p=0.000 n=29+26) Decode/Twain/Default/1e5-8 906µs ± 1% 902µs ± 1% -0.48% (p=0.000 n=27+28) Decode/Twain/Default/1e6-8 8.75ms ± 1% 8.68ms ± 2% -0.73% (p=0.000 n=28+28) Decode/Twain/Compression/1e4-8 110µs ± 1% 109µs ± 1% -0.80% (p=0.000 n=27+28) Decode/Twain/Compression/1e5-8 905µs ± 1% 906µs ± 5% ~ (p=0.065 n=27+29) Decode/Twain/Compression/1e6-8 8.75ms ± 2% 8.68ms ± 1% -0.76% (p=0.000 n=26+26) Encode/Digits/Huffman/1e4-8 31.8µs ± 1% 32.3µs ± 2% +1.43% (p=0.000 n=28+27) Encode/Digits/Huffman/1e5-8 299µs ± 2% 296µs ± 1% -1.05% (p=0.000 n=29+29) Encode/Digits/Huffman/1e6-8 2.99ms ± 3% 2.96ms ± 1% -1.00% (p=0.000 n=29+28) Encode/Digits/Speed/1e4-8 149µs ± 1% 152µs ± 4% +2.18% (p=0.000 n=30+30) Encode/Digits/Speed/1e5-8 1.39ms ± 1% 1.40ms ± 2% +1.02% (p=0.000 n=27+27) Encode/Digits/Speed/1e6-8 13.7ms ± 0% 13.8ms ± 1% +0.81% (p=0.000 n=27+27) Encode/Digits/Default/1e4-8 297µs ± 7% 297µs ± 7% ~ (p=1.000 n=30+30) Encode/Digits/Default/1e5-8 4.51ms ± 1% 4.42ms ± 1% -2.06% (p=0.000 n=29+29) Encode/Digits/Default/1e6-8 47.5ms ± 1% 46.6ms ± 1% -1.90% (p=0.000 n=27+25) Encode/Digits/Compression/1e4-8 302µs ± 7% 303µs ± 9% ~ (p=0.854 n=30+30) Encode/Digits/Compression/1e5-8 4.52ms ± 1% 4.43ms ± 2% -1.91% (p=0.000 n=26+25) Encode/Digits/Compression/1e6-8 47.5ms ± 1% 46.7ms ± 1% -1.70% (p=0.000 n=26+27) Encode/Twain/Huffman/1e4-8 46.6µs ± 2% 46.8µs ± 2% ~ (p=0.114 n=30+30) Encode/Twain/Huffman/1e5-8 357µs ± 3% 352µs ± 2% -1.13% (p=0.000 n=29+28) Encode/Twain/Huffman/1e6-8 3.58ms ± 4% 3.52ms ± 1% -1.43% (p=0.003 n=30+28) Encode/Twain/Speed/1e4-8 173µs ± 1% 174µs ± 1% +0.65% (p=0.000 n=27+28) Encode/Twain/Speed/1e5-8 1.39ms ± 1% 1.40ms ± 1% +0.92% (p=0.000 n=28+27) Encode/Twain/Speed/1e6-8 13.6ms ± 1% 13.7ms ± 1% +0.51% (p=0.000 n=25+26) Encode/Twain/Default/1e4-8 364µs ± 5% 361µs ± 5% ~ (p=0.219 n=30+30) Encode/Twain/Default/1e5-8 5.41ms ± 1% 5.43ms ± 5% ~ (p=0.655 n=27+27) Encode/Twain/Default/1e6-8 57.2ms ± 1% 58.4ms ± 4% +2.15% (p=0.000 n=22+28) Encode/Twain/Compression/1e4-8 371µs ± 9% 373µs ± 6% ~ (p=0.503 n=30+29) Encode/Twain/Compression/1e5-8 5.97ms ± 2% 5.92ms ± 1% -0.75% (p=0.000 n=28+26) Encode/Twain/Compression/1e6-8 64.0ms ± 1% 63.8ms ± 1% -0.36% (p=0.036 n=27+25) [Geo mean] 1.37ms 1.36ms -0.38% Change-Id: I3df4de63f06eaf121c38821bd889453a8de1b199 Reviewed-on: https://go-review.googlesource.com/101276Reviewed-by:
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Austin Clements authored
Currently isSystemGoroutine has a hard-coded list of known entry points into system goroutines. This list is annoying to maintain. For example, it's missing the ensureSigM goroutine. Replace it with a check that simply looks for any goroutine with runtime function as its entry point, with a few exceptions. This also matches the definition recently added to the trace viewer (CL 81315). Change-Id: Iaed723d4a6e8c2ffb7c0c48fbac1688b00b30f01 Reviewed-on: https://go-review.googlesource.com/81655 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Keith Randall authored
This comment needs updating after moving the "bounded" mark from Aux to AuxInt. Change-Id: I924fb22a81fffcd6944b93f0e3357c3aa2c4c49e Reviewed-on: https://go-review.googlesource.com/111880Reviewed-by:
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Sabin Mihai Rapan authored
Changed the example to convey the intent of the Unquote function in a more succint way. Fixes #23693 Change-Id: I49465641d730e70b5af0d47057335af39882bcec Reviewed-on: https://go-review.googlesource.com/92015Reviewed-by:
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Brad Fitzpatrick authored
Updates x/net to git rev cbb82b59bc for: lex/httplex, http/httpguts: merge the httplex package into httpguts https://golang.org/cl/111875 http2: set nextStreamID to 3 when AllowHTTP is set https://golang.org/cl/111835 http2: terminate await request cancel goroutine on conn close https://golang.org/cl/108415 Fixes #24776 (CL 111655 didn't actually include it) Change-Id: I0a21e169ebba2ec35219f347f1e31cd4c67bebdf Reviewed-on: https://go-review.googlesource.com/111876 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by:Kunpei Sakai <namusyaka@gmail.com> Reviewed-by:
Andrew Bonventre <andybons@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Elias Naur authored
Tests can fail because there is leftover data from a previous run. For example: --- FAIL: TestRemoveAll (0.00s) path_test.go:96: RemoveAll "/private/var/mobile/Containers/Data/Application/66247524-5ED7-45A4-82AA-6BF15D6078B2/tmp//_TestRemoveAll_" (first): open /private/var/mobile/Containers/Data/Application/66247524-5ED7-45A4-82AA-6BF15D6078B2/tmp//_TestRemoveAll_/dir: permission denied FAIL FAIL os 31.275s There seem to be no way to simply clear the app data for an app short of uninstalling it, so do that. This change in effect undoes CL 106676, which means that running iOS is a little slower again, and that another app from the same apple developer account must be present on the device for our app install to succeed. Change-Id: Iacc3a6f95c93568f4418db45e1098c7c7fdb88e0 Reviewed-on: https://go-review.googlesource.com/111795 TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Josh Bleecher Snyder authored
\f triggers a flush. This is used (by gofmt, among others) to indicate that the current aligned segment has ended. When flushed, it is unlikely that the previous line is in fact a good predictor of the upcoming line, so stop treating it as such. No performance impact on the existing benchmarks, which do not perform any flushes. Change-Id: Ifdf3e6d4600713c90db7b51a10e429d9260dc08c Reviewed-on: https://go-review.googlesource.com/111644Reviewed-by:
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Daniel Martí authored
In hasSideEffects, vet has to be taught whether or not a CallExpr is an actual function call, or just a type conversion. The previous code knew how to differentiate fn(arg) from int(arg), but it incorrectly saw (func(T))(fn) as a func call. This edge case is slightly tricky, since the CallExpr.Fun has a func signature type, just like in func calls. However, the difference is that in this case the Fun is a type, not a value. This information is in types.TypeAndValue, so use it. Change-Id: I18bb8b23abbe7decc558b726ff2dc31fae2f13d6 Reviewed-on: https://go-review.googlesource.com/111416 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Russ Cox authored
Makes compress/flate work better with cmd/dist bootstrap. Change-Id: Ifc7d74027367008e82c1d14ec77141830583ba82 Reviewed-on: https://go-review.googlesource.com/111815 Run-TryBot: Russ Cox <rsc@golang.org> Reviewed-by:
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fanzha02 authored
Current assmbler accepts MUL* related instructions with 4 operands, such as instruction "MUL R1, R2, R3, R4", which is illegal. The fix adds an actual field informantion to Optab, which has value of C_NONE, C_REG, etc, so assembler can use p.From3Type for checking in oplook. Add test cases. Fixes #25059 Change-Id: I0656319383c460696b392197bf5960b987f8fc97 Reviewed-on: https://go-review.googlesource.com/109295Reviewed-by:
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Zhou Peng authored
Change-Id: I33790af9fd0c2f6fdeaf9778c1381e0e6d697abb Reviewed-on: https://go-review.googlesource.com/111755Reviewed-by:
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- 06 May, 2018 7 commits
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Author Name authored
Change-Id: I930be9027fb972198b3d44816a5e4f53ff7eb5ea Reviewed-on: https://go-review.googlesource.com/111642Reviewed-by:
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Josh Bleecher Snyder authored
name old alloc/op new alloc/op delta Template 35.0MB ± 0% 35.0MB ± 0% -0.05% (p=0.008 n=5+5) Unicode 29.3MB ± 0% 29.3MB ± 0% ~ (p=0.310 n=5+5) GoTypes 115MB ± 0% 115MB ± 0% -0.08% (p=0.008 n=5+5) Compiler 519MB ± 0% 519MB ± 0% -0.08% (p=0.008 n=5+5) SSA 1.59GB ± 0% 1.59GB ± 0% -0.05% (p=0.008 n=5+5) Flate 24.2MB ± 0% 24.2MB ± 0% -0.06% (p=0.008 n=5+5) GoParser 28.2MB ± 0% 28.1MB ± 0% -0.04% (p=0.016 n=5+5) Reflect 78.8MB ± 0% 78.7MB ± 0% -0.10% (p=0.008 n=5+5) Tar 34.5MB ± 0% 34.4MB ± 0% -0.07% (p=0.008 n=5+5) XML 43.3MB ± 0% 43.2MB ± 0% -0.09% (p=0.008 n=5+5) [Geo mean] 77.5MB 77.4MB -0.06% name old allocs/op new allocs/op delta Template 330k ± 0% 329k ± 0% -0.32% (p=0.008 n=5+5) Unicode 337k ± 0% 336k ± 0% -0.10% (p=0.008 n=5+5) GoTypes 1.15M ± 0% 1.14M ± 0% -0.34% (p=0.008 n=5+5) Compiler 4.78M ± 0% 4.77M ± 0% -0.25% (p=0.008 n=5+5) SSA 12.9M ± 0% 12.9M ± 0% -0.12% (p=0.008 n=5+5) Flate 221k ± 0% 220k ± 0% -0.32% (p=0.008 n=5+5) GoParser 275k ± 0% 274k ± 0% -0.34% (p=0.008 n=5+5) Reflect 944k ± 0% 940k ± 0% -0.42% (p=0.008 n=5+5) Tar 323k ± 0% 322k ± 0% -0.31% (p=0.008 n=5+5) XML 384k ± 0% 383k ± 0% -0.26% (p=0.008 n=5+5) [Geo mean] 749k 747k -0.28% Updates #21266 Change-Id: I926ee3ba009c068239db70cdee8fdf85b5ee6bb4 Reviewed-on: https://go-review.googlesource.com/109816 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Kunpei Sakai authored
Updates http2 to x/net/http2 git rev 5f9ae10 for: http2: terminate await request cancel goroutine on conn close https://golang.org/cl/108415 http2: don't sniff Content-type in Server when X-Content-Type-Options:nosniff https://golang.org/cl/107295 http2, http/httpguts: move ValidTrailerHeader to new common package http/httpguts https://golang.org/cl/104042 all: remove "the" duplications https://golang.org/cl/94975 http2: use RFC 723x as normative reference in docs https://golang.org/cl/94555 all: use HTTPS for iana.org links https://golang.org/cl/89415 Fixes #24795 Fixes #24776 Updates #23908 Fixes #21974 Change-Id: I7985617a7dde56cc5ed8670d73b26f8307be83d6 Reviewed-on: https://go-review.googlesource.com/111655Reviewed-by: -
Martin Möhrmann authored
The hmap field in the maptype is only used by the runtime to check the sizes of the hmap structure created by the compiler and runtime agree. Comments are already present about the hmap structure definitions in the compiler and runtime needing to be in sync. Add a test that checks the runtimes hmap size is as expected to detect when the compilers and runtimes hmap sizes diverge instead of checking this at runtime when a map is created. Change-Id: I974945ebfdb66883a896386a17bbcae62a18cf2a Reviewed-on: https://go-review.googlesource.com/91796 Run-TryBot: Martin Möhrmann <moehrmann@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Martin Möhrmann authored
Adds a new runtime function to count runes in a string. Modifies the compiler to detect the pattern len([]rune(string)) and replaces it with the new rune counting runtime function. RuneCount/lenruneslice/ASCII 27.8ns ± 2% 14.5ns ± 3% -47.70% (p=0.000 n=10+10) RuneCount/lenruneslice/Japanese 126ns ± 2% 60ns ± 2% -52.03% (p=0.000 n=10+10) RuneCount/lenruneslice/MixedLength 104ns ± 2% 50ns ± 1% -51.71% (p=0.000 n=10+9) Fixes #24923 Change-Id: Ie9c7e7391a4e2cca675c5cdcc1e5ce7d523948b9 Reviewed-on: https://go-review.googlesource.com/108985 Run-TryBot: Martin Möhrmann <moehrmann@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Martin Möhrmann authored
Changes the compiler to recognize the slice extension pattern append(x, make([]T, y)...) and replace it with growslice and an optional memclr to avoid an allocation for make([]T, y). Memclr is not called in case growslice already allocated a new cleared backing array when T contains pointers. amd64: name old time/op new time/op delta ExtendSlice/IntSlice 103ns ± 4% 57ns ± 4% -44.55% (p=0.000 n=18+18) ExtendSlice/PointerSlice 155ns ± 3% 77ns ± 3% -49.93% (p=0.000 n=20+20) ExtendSlice/NoGrow 50.2ns ± 3% 5.2ns ± 2% -89.67% (p=0.000 n=18+18) name old alloc/op new alloc/op delta ExtendSlice/IntSlice 64.0B ± 0% 32.0B ± 0% -50.00% (p=0.000 n=20+20) ExtendSlice/PointerSlice 64.0B ± 0% 32.0B ± 0% -50.00% (p=0.000 n=20+20) ExtendSlice/NoGrow 32.0B ± 0% 0.0B -100.00% (p=0.000 n=20+20) name old allocs/op new allocs/op delta ExtendSlice/IntSlice 2.00 ± 0% 1.00 ± 0% -50.00% (p=0.000 n=20+20) ExtendSlice/PointerSlice 2.00 ± 0% 1.00 ± 0% -50.00% (p=0.000 n=20+20) ExtendSlice/NoGrow 1.00 ± 0% 0.00 -100.00% (p=0.000 n=20+20) Fixes #21266 Change-Id: Idc3077665f63cbe89762b590c5967a864fd1c07f Reviewed-on: https://go-review.googlesource.com/109517 Run-TryBot: Martin Möhrmann <moehrmann@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Josh Bleecher Snyder authored
These were added in CL 106979. They were wrong. The correct impact of CL 106979 on these benchmarks is: name old time/op new time/op delta Pyramid/10-8 6.22µs ± 1% 5.68µs ± 0% -8.78% (p=0.000 n=15+13) Pyramid/100-8 275µs ± 1% 255µs ± 1% -7.30% (p=0.000 n=15+13) Pyramid/1000-8 25.6ms ± 1% 24.8ms ± 1% -2.88% (p=0.000 n=15+14) Ragged/10-8 8.98µs ± 1% 6.74µs ± 0% -24.98% (p=0.000 n=15+14) Ragged/100-8 85.3µs ± 0% 57.5µs ± 1% -32.51% (p=0.000 n=13+15) Ragged/1000-8 847µs ± 1% 561µs ± 1% -33.85% (p=0.000 n=14+15) name old alloc/op new alloc/op delta Pyramid/10-8 4.74kB ± 0% 4.88kB ± 0% +3.04% (p=0.000 n=15+15) Pyramid/100-8 379kB ± 0% 411kB ± 0% +8.50% (p=0.000 n=15+12) Pyramid/1000-8 35.3MB ± 0% 41.6MB ± 0% +17.68% (p=0.000 n=15+15) Ragged/10-8 4.82kB ± 0% 1.82kB ± 0% -62.13% (p=0.000 n=15+15) Ragged/100-8 45.4kB ± 0% 1.8kB ± 0% -95.98% (p=0.000 n=15+15) Ragged/1000-8 449kB ± 0% 2kB ± 0% -99.59% (p=0.000 n=15+15) name old allocs/op new allocs/op delta Pyramid/10-8 50.0 ± 0% 35.0 ± 0% -30.00% (p=0.000 n=15+15) Pyramid/100-8 704 ± 0% 231 ± 0% -67.19% (p=0.000 n=15+15) Pyramid/1000-8 10.0k ± 0% 2.1k ± 0% -79.52% (p=0.000 n=15+15) Ragged/10-8 60.0 ± 0% 19.0 ± 0% -68.33% (p=0.000 n=15+15) Ragged/100-8 511 ± 0% 19 ± 0% -96.28% (p=0.000 n=15+15) Ragged/1000-8 5.01k ± 0% 0.02k ± 0% -99.62% (p=0.000 n=15+15) This is an improvement over what was originally reported, except the increase in alloc/op for the Pyramid benchmarks. Change-Id: Ib2617c1288ce35f2c78e0172533d231b86e48bc2 Reviewed-on: https://go-review.googlesource.com/111643 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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- 05 May, 2018 3 commits
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Daniel Theophanes authored
Ensure all error prefixes in the "database/sql" package start with "sql: ". Do not prefix errors for type conversions because they are always embedded in another error message with a specific context. Fixes #25251 Change-Id: I349d9804f3bfda4eeb755b32b508ec5992c28e07 Reviewed-on: https://go-review.googlesource.com/111637Reviewed-by:
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Ian Lance Taylor authored
When building for gccgo cmd/go uses symlinks for import maps. In some cases, such as TestVendorTest, it generates the same symlink multiple times. Don't give an error when this happens. Change-Id: Iecc154ea1ac53d7c5427b36795881909c5cac7e3 Reviewed-on: https://go-review.googlesource.com/111636 Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by:
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Ian Lance Taylor authored
A gccgo command line can contain parentheses, for -( and -). Quote them when outputting a command line, so that `go build -x` output is suitable for use as shell input. Change-Id: I43194b87bf048e583c222b19ca4bcdcb1deca97a Reviewed-on: https://go-review.googlesource.com/111635 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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- 04 May, 2018 5 commits
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Daniel Martí authored
Some warnings were being missed, because vet's regex that finds formatting directives was missing the 'T' verb. Fixes #24646. Change-Id: I2f6f9ed19e7daf9a07175199f428a62e94799ea9 Reviewed-on: https://go-review.googlesource.com/111357 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Rob Pike <r@golang.org>
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Alberto Donizetti authored
The Go runtime registers a handler for every signal. This prevents Go binaries from working on QEMU in user-emulation mode, since the hacky way QEMU implements signals on Linux assumes that no-one uses signal 64 (SIGRTMAX). In the past, we had a workaround in the runtime to prevent crashes on start-up when running on QEMU: golang.org/cl/124900043 golang.org/cl/16853 but it went lost during the 1.11 dev cycle. More precisely, the test for SIGRTMAX was dropped in CL 18150 when we stopped testing the result of sigaction in the Linux implementation of setsig. That change was made to avoid a stack split overflow because code started calling setsig from nosplit functions. Then in CL 99077 we started testing the result of sigaction again, this time using systemstack to avoid to stack split overflow. When this test was added back, we did not bring back the test of SIGRTMAX. As a result, Go1.10 binaries work on QEMU, while 1.11 binaries immediately crash on startup. This change restores the QEMU workaround. Updates #24656 Change-Id: I46380b1e1b4bf47db7bc7b3d313f00c4e4c11ea3 Reviewed-on: https://go-review.googlesource.com/111176Reviewed-by:
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Brad Fitzpatrick authored
RFC 2617, Section 1.2: "It uses an extensible, case-insensitive token to identify the authentication scheme" RFC 7617, Section 2: "Note that both scheme and parameter names are matched case-insensitively." Fixes #22736 Change-Id: I825d6dbd4fef0f1c6add89f0cbdb56a03eae9443 Reviewed-on: https://go-review.googlesource.com/111516Reviewed-by:
Dmitri Shuralyov <dmitri@shuralyov.com> Reviewed-by:
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Dmitri Shuralyov authored
This is a followup to CL 110296. That change added a new behavior to Redirect, where the short HTML body is not written if the Content-Type header is already set. It was implemented by doing an early return. That unintentionally prevented the correct status code from being written, so it would always default to 200. Existing tests didn't catch this because they don't check status code. This change fixes that issue by removing the early return and moving the code to write a short HTML body behind an if statement. It adds written status code checks to Redirect tests. It also tries to improve the documentation wording and code style in TestRedirect_contentTypeAndBody. Updates #25166. Change-Id: Idce004baa88e278d098661c03c9523426c5eb898 Reviewed-on: https://go-review.googlesource.com/111517Reviewed-by:
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Richard Musiol authored
This commit adds the wasm architecture to the compile command. A later commit will contain the corresponding linker changes. Design doc: https://docs.google.com/document/d/131vjr4DH6JFnb-blm_uRdaC0_Nv3OUwjEY5qVCxCup4 The following files are generated: - src/cmd/compile/internal/ssa/opGen.go - src/cmd/compile/internal/ssa/rewriteWasm.go - src/cmd/internal/obj/wasm/anames.go Updates #18892 Change-Id: Ifb4a96a3e427aac2362a1c97967d5667450fba3b Reviewed-on: https://go-review.googlesource.com/103295 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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