- 30 Aug, 2018 13 commits
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G. Hussain Chinoy authored
Change-Id: I65c3bda498562fdf39994ec1cadce7947e2d84b5 Reviewed-on: https://go-review.googlesource.com/132277 Run-TryBot: Bryan C. Mills <bcmills@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Bryan C. Mills <bcmills@google.com>
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Cherry Zhang authored
runtime.wbBufFlush must not modify its arguments, because the argument slots are also used as spill slots in runtime.gcWriteBarrier. So, GOEXPERIMENT=clobberdead must not clobber them. Updates #27326. Change-Id: Id02bb22a45201eecee748d89e7bdb3df7e4940e4 Reviewed-on: https://go-review.googlesource.com/131957Reviewed-by: Keith Randall <khr@golang.org>
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Cherry Zhang authored
We now have safepoints at nearly all the instructions. When GOEXPERIMENT=clobberdead is on, it inserts clobbers nearly at every instruction. Currently this doesn't work. (Maybe the stack maps at non-call safepoints are still imprecise. I haven't investigated.) For now, only use call-based safepoints if the experiment is on. Updates #27326. Change-Id: I72cda9b422d9637cc5738e681502035af7a5c02d Reviewed-on: https://go-review.googlesource.com/131956Reviewed-by: Keith Randall <khr@golang.org>
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Rebecca Stambler authored
The current implementation crashes when someone writes a panic outside of a function, which makes sense since that is broken code. This fix allows one to type-check broken code. Updates #22467 Change-Id: I81b90dbd918162a20c60a821340898eaf02e648d Reviewed-on: https://go-review.googlesource.com/132235Reviewed-by: Alan Donovan <adonovan@google.com>
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Alex Kohler authored
Change-Id: Icded6c786b7b185d5aff055f34e0cfe9e521826a Reviewed-on: https://go-review.googlesource.com/132176 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Than McIntosh authored
The sym.Symbol 'ElfType' field is used only for symbols corresponding to things in imported shared libraries, hence is not needed in the common case. Relocate it to sym.AuxSymbol so as to shrink the main Symbol struct. Updates #26186 Change-Id: I803efc561c31a0ca1d93eca434fda1c862a7b2c5 Reviewed-on: https://go-review.googlesource.com/125479Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Than McIntosh authored
The sym.Symbol 'Plt' and 'Got' field are used only with cgo and/or external linking and are not needed for most symbols. Relocate them to sym.AuxSymbol so as to shrink the main Symbol struct. Updates #26186 Change-Id: I170d628a760be300a0c1f738f0998970e91ce3d6 Reviewed-on: https://go-review.googlesource.com/125478Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Than McIntosh authored
The sym.Symbol 'Localentry' field is used only with cgo and/or external linking on MachoPPC. Relocate it to sym.AuxSymbol since it is infrequently used, so as to shrink the main Symbol struct. Updates #26186 Change-Id: I5872aa3f059270c2a091016d235a1a732695e411 Reviewed-on: https://go-review.googlesource.com/125477Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Than McIntosh authored
Create a new "AuxSymbol" struct into which 'cold' or 'infrequently set' symbol fields are located. Move the Extname field from the main Symbol struct to AuxSymbol. Updates #26186 Change-Id: I9e795fb0cc48f978e2818475fa073ed9f2db202d Reviewed-on: https://go-review.googlesource.com/125476Reviewed-by: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Cherry Zhang authored
The 120->124 change in https://go-review.googlesource.com/c/go/+/61511/21/test/nosplit.go#143 looks accidental. Change back to 120. Change-Id: I1690a8ae2d32756ba05544d2ed1baabfa64e1704 Reviewed-on: https://go-review.googlesource.com/131958 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Ben Shi authored
The system call geteuid can not work properly on android, which causes a test case failed on rooted android/arm. This CL disables the test case on android. Fixes #27364 Change-Id: Ibfd33ef8cc1dfe8822c8be4280eae12ee30929c1 Reviewed-on: https://go-review.googlesource.com/132175 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
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Joe Cortopassi authored
Fixes issue #27359 Change-Id: I048fbd88a08e8b17fcda3872ee4c78935d5075d8 GitHub-Last-Rev: a0751eca094d68e9bf005abeb6616eb5b0050190 GitHub-Pull-Request: golang/go#27359 Reviewed-on: https://go-review.googlesource.com/132117Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Cherry Zhang authored
Nil check is special in that it has no use but we must keep it. Count it as a use of the auto. Fixes #27278. Change-Id: I857c3d0db2ebdca1bc342b4993c0dac5c01e067f Reviewed-on: https://go-review.googlesource.com/131955 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
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- 29 Aug, 2018 6 commits
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Alexey Alexandrov authored
Fixes #26638. Change-Id: I3c18d1298d99af8ea8c00916303efd2b5a5effc7 Reviewed-on: https://go-review.googlesource.com/126336Reviewed-by: Hyang-Ah Hana Kim <hyangah@gmail.com> Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Alberto Donizetti authored
bytes.NewBuffer's documentation says it can be used to set the initial size of the buffer. The current wording is: > It can also be used to size the internal buffer for writing. This may led users to believe that the buffer (its backing array) is fixed in size and won't grow, which isn't true (subsequent Write calls will expand the backing array as needed). Change the doc to make it clearer that NewBuffer just sets the initial size of the buffer. Fixes #27242 Change-Id: I2a8cb5bee02ca2c1657ef59e2cf1434c7a9bd397 Reviewed-on: https://go-review.googlesource.com/132035Reviewed-by: Dominik Honnef <dominik@honnef.co> Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Daniel Martí authored
lexRawQuote already uses the next method, which keeps track of newlines on a character by character basis. Adding up newlines in emit again results in the newlines being counted twice, which can mean bad position information in error messages. Fix that, and add a test. Fixes #27319. Change-Id: Id803be065c541412dc808d388bc6d8a86a0de41e Reviewed-on: https://go-review.googlesource.com/131996 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Zheng Xu authored
Supporting frame-pointer makes Linux's perf and other profilers much more useful because it lets them gather a stack trace efficiently on profiling events. Major changes include: 1. save FP on the word below where RSP is pointing to (proposed by Cherry and Austin) 2. adjust some specific offsets in runtime assembly and wrapper code 3. add support to FP in goroutine scheduler 4. adjust link stack overflow check to take the extra word into account 5. adjust nosplit test cases to enable frame sizes which are 16 bytes aligned Performance impacts on go1 benchmarks: Enable frame-pointer (by default) name old time/op new time/op delta BinaryTree17-46 5.94s ± 0% 6.00s ± 0% +1.03% (p=0.029 n=4+4) Fannkuch11-46 2.84s ± 1% 2.77s ± 0% -2.58% (p=0.008 n=5+5) FmtFprintfEmpty-46 55.0ns ± 1% 58.9ns ± 1% +7.06% (p=0.008 n=5+5) FmtFprintfString-46 102ns ± 0% 105ns ± 0% +2.94% (p=0.008 n=5+5) FmtFprintfInt-46 118ns ± 0% 117ns ± 1% -1.19% (p=0.000 n=4+5) FmtFprintfIntInt-46 181ns ± 0% 182ns ± 1% ~ (p=0.444 n=5+5) FmtFprintfPrefixedInt-46 215ns ± 1% 214ns ± 0% ~ (p=0.254 n=5+4) FmtFprintfFloat-46 292ns ± 0% 296ns ± 0% +1.46% (p=0.029 n=4+4) FmtManyArgs-46 720ns ± 0% 732ns ± 0% +1.72% (p=0.008 n=5+5) GobDecode-46 9.82ms ± 1% 10.03ms ± 2% +2.10% (p=0.008 n=5+5) GobEncode-46 8.14ms ± 0% 8.72ms ± 1% +7.14% (p=0.008 n=5+5) Gzip-46 420ms ± 0% 424ms ± 0% +0.92% (p=0.008 n=5+5) Gunzip-46 48.2ms ± 0% 48.4ms ± 0% +0.41% (p=0.008 n=5+5) HTTPClientServer-46 201µs ± 4% 201µs ± 0% ~ (p=0.730 n=5+4) JSONEncode-46 17.1ms ± 0% 17.7ms ± 1% +3.80% (p=0.008 n=5+5) JSONDecode-46 88.0ms ± 0% 90.1ms ± 0% +2.42% (p=0.008 n=5+5) Mandelbrot200-46 5.06ms ± 0% 5.07ms ± 0% ~ (p=0.310 n=5+5) GoParse-46 5.04ms ± 0% 5.12ms ± 0% +1.53% (p=0.008 n=5+5) RegexpMatchEasy0_32-46 117ns ± 0% 117ns ± 0% ~ (all equal) RegexpMatchEasy0_1K-46 332ns ± 0% 329ns ± 0% -0.78% (p=0.008 n=5+5) RegexpMatchEasy1_32-46 104ns ± 0% 113ns ± 0% +8.65% (p=0.029 n=4+4) RegexpMatchEasy1_1K-46 563ns ± 0% 569ns ± 0% +1.10% (p=0.008 n=5+5) RegexpMatchMedium_32-46 167ns ± 2% 177ns ± 1% +5.74% (p=0.008 n=5+5) RegexpMatchMedium_1K-46 49.5µs ± 0% 53.4µs ± 0% +7.81% (p=0.008 n=5+5) RegexpMatchHard_32-46 2.56µs ± 1% 2.72µs ± 0% +6.01% (p=0.008 n=5+5) RegexpMatchHard_1K-46 77.0µs ± 0% 81.8µs ± 0% +6.24% (p=0.016 n=5+4) Revcomp-46 631ms ± 1% 627ms ± 1% ~ (p=0.095 n=5+5) Template-46 81.8ms ± 0% 86.3ms ± 0% +5.55% (p=0.008 n=5+5) TimeParse-46 423ns ± 0% 432ns ± 0% +2.32% (p=0.008 n=5+5) TimeFormat-46 478ns ± 2% 497ns ± 1% +3.89% (p=0.008 n=5+5) [Geo mean] 71.6µs 73.3µs +2.45% name old speed new speed delta GobDecode-46 78.1MB/s ± 1% 76.6MB/s ± 2% -2.04% (p=0.008 n=5+5) GobEncode-46 94.3MB/s ± 0% 88.0MB/s ± 1% -6.67% (p=0.008 n=5+5) Gzip-46 46.2MB/s ± 0% 45.8MB/s ± 0% -0.91% (p=0.008 n=5+5) Gunzip-46 403MB/s ± 0% 401MB/s ± 0% -0.41% (p=0.008 n=5+5) JSONEncode-46 114MB/s ± 0% 109MB/s ± 1% -3.66% (p=0.008 n=5+5) JSONDecode-46 22.0MB/s ± 0% 21.5MB/s ± 0% -2.35% (p=0.008 n=5+5) GoParse-46 11.5MB/s ± 0% 11.3MB/s ± 0% -1.51% (p=0.008 n=5+5) RegexpMatchEasy0_32-46 272MB/s ± 0% 272MB/s ± 1% ~ (p=0.190 n=4+5) RegexpMatchEasy0_1K-46 3.08GB/s ± 0% 3.11GB/s ± 0% +0.77% (p=0.008 n=5+5) RegexpMatchEasy1_32-46 306MB/s ± 0% 283MB/s ± 0% -7.63% (p=0.029 n=4+4) RegexpMatchEasy1_1K-46 1.82GB/s ± 0% 1.80GB/s ± 0% -1.07% (p=0.008 n=5+5) RegexpMatchMedium_32-46 5.99MB/s ± 0% 5.64MB/s ± 1% -5.77% (p=0.016 n=4+5) RegexpMatchMedium_1K-46 20.7MB/s ± 0% 19.2MB/s ± 0% -7.25% (p=0.008 n=5+5) RegexpMatchHard_32-46 12.5MB/s ± 1% 11.8MB/s ± 0% -5.66% (p=0.008 n=5+5) RegexpMatchHard_1K-46 13.3MB/s ± 0% 12.5MB/s ± 1% -6.01% (p=0.008 n=5+5) Revcomp-46 402MB/s ± 1% 405MB/s ± 1% ~ (p=0.095 n=5+5) Template-46 23.7MB/s ± 0% 22.5MB/s ± 0% -5.25% (p=0.008 n=5+5) [Geo mean] 82.2MB/s 79.6MB/s -3.26% Disable frame-pointer (GOEXPERIMENT=noframepointer) name old time/op new time/op delta BinaryTree17-46 5.94s ± 0% 5.96s ± 0% +0.39% (p=0.029 n=4+4) Fannkuch11-46 2.84s ± 1% 2.79s ± 1% -1.68% (p=0.008 n=5+5) FmtFprintfEmpty-46 55.0ns ± 1% 55.2ns ± 3% ~ (p=0.794 n=5+5) FmtFprintfString-46 102ns ± 0% 103ns ± 0% +0.98% (p=0.016 n=5+4) FmtFprintfInt-46 118ns ± 0% 115ns ± 0% -2.54% (p=0.029 n=4+4) FmtFprintfIntInt-46 181ns ± 0% 179ns ± 0% -1.10% (p=0.000 n=5+4) FmtFprintfPrefixedInt-46 215ns ± 1% 213ns ± 0% ~ (p=0.143 n=5+4) FmtFprintfFloat-46 292ns ± 0% 300ns ± 0% +2.83% (p=0.029 n=4+4) FmtManyArgs-46 720ns ± 0% 739ns ± 0% +2.64% (p=0.008 n=5+5) GobDecode-46 9.82ms ± 1% 9.78ms ± 1% ~ (p=0.151 n=5+5) GobEncode-46 8.14ms ± 0% 8.12ms ± 1% ~ (p=0.690 n=5+5) Gzip-46 420ms ± 0% 420ms ± 0% ~ (p=0.548 n=5+5) Gunzip-46 48.2ms ± 0% 48.0ms ± 0% -0.33% (p=0.032 n=5+5) HTTPClientServer-46 201µs ± 4% 199µs ± 3% ~ (p=0.548 n=5+5) JSONEncode-46 17.1ms ± 0% 17.2ms ± 0% ~ (p=0.056 n=5+5) JSONDecode-46 88.0ms ± 0% 88.6ms ± 0% +0.64% (p=0.008 n=5+5) Mandelbrot200-46 5.06ms ± 0% 5.07ms ± 0% ~ (p=0.548 n=5+5) GoParse-46 5.04ms ± 0% 5.07ms ± 0% +0.65% (p=0.008 n=5+5) RegexpMatchEasy0_32-46 117ns ± 0% 112ns ± 4% -4.27% (p=0.016 n=4+5) RegexpMatchEasy0_1K-46 332ns ± 0% 330ns ± 1% ~ (p=0.095 n=5+5) RegexpMatchEasy1_32-46 104ns ± 0% 110ns ± 1% +5.29% (p=0.029 n=4+4) RegexpMatchEasy1_1K-46 563ns ± 0% 567ns ± 2% ~ (p=0.151 n=5+5) RegexpMatchMedium_32-46 167ns ± 2% 166ns ± 0% ~ (p=0.333 n=5+4) RegexpMatchMedium_1K-46 49.5µs ± 0% 49.6µs ± 0% ~ (p=0.841 n=5+5) RegexpMatchHard_32-46 2.56µs ± 1% 2.49µs ± 0% -2.81% (p=0.008 n=5+5) RegexpMatchHard_1K-46 77.0µs ± 0% 75.8µs ± 0% -1.55% (p=0.008 n=5+5) Revcomp-46 631ms ± 1% 628ms ± 0% ~ (p=0.095 n=5+5) Template-46 81.8ms ± 0% 84.3ms ± 1% +3.05% (p=0.008 n=5+5) TimeParse-46 423ns ± 0% 425ns ± 0% +0.52% (p=0.008 n=5+5) TimeFormat-46 478ns ± 2% 478ns ± 1% ~ (p=1.000 n=5+5) [Geo mean] 71.6µs 71.6µs -0.01% name old speed new speed delta GobDecode-46 78.1MB/s ± 1% 78.5MB/s ± 1% ~ (p=0.151 n=5+5) GobEncode-46 94.3MB/s ± 0% 94.5MB/s ± 1% ~ (p=0.690 n=5+5) Gzip-46 46.2MB/s ± 0% 46.2MB/s ± 0% ~ (p=0.571 n=5+5) Gunzip-46 403MB/s ± 0% 404MB/s ± 0% +0.33% (p=0.032 n=5+5) JSONEncode-46 114MB/s ± 0% 113MB/s ± 0% ~ (p=0.056 n=5+5) JSONDecode-46 22.0MB/s ± 0% 21.9MB/s ± 0% -0.64% (p=0.008 n=5+5) GoParse-46 11.5MB/s ± 0% 11.4MB/s ± 0% -0.64% (p=0.008 n=5+5) RegexpMatchEasy0_32-46 272MB/s ± 0% 285MB/s ± 4% +4.74% (p=0.016 n=4+5) RegexpMatchEasy0_1K-46 3.08GB/s ± 0% 3.10GB/s ± 1% ~ (p=0.151 n=5+5) RegexpMatchEasy1_32-46 306MB/s ± 0% 290MB/s ± 1% -5.21% (p=0.029 n=4+4) RegexpMatchEasy1_1K-46 1.82GB/s ± 0% 1.81GB/s ± 2% ~ (p=0.151 n=5+5) RegexpMatchMedium_32-46 5.99MB/s ± 0% 6.02MB/s ± 1% ~ (p=0.063 n=4+5) RegexpMatchMedium_1K-46 20.7MB/s ± 0% 20.7MB/s ± 0% ~ (p=0.659 n=5+5) RegexpMatchHard_32-46 12.5MB/s ± 1% 12.8MB/s ± 0% +2.88% (p=0.008 n=5+5) RegexpMatchHard_1K-46 13.3MB/s ± 0% 13.5MB/s ± 0% +1.58% (p=0.008 n=5+5) Revcomp-46 402MB/s ± 1% 405MB/s ± 0% ~ (p=0.095 n=5+5) Template-46 23.7MB/s ± 0% 23.0MB/s ± 1% -2.95% (p=0.008 n=5+5) [Geo mean] 82.2MB/s 82.3MB/s +0.04% Frame-pointer is enabled on Linux by default but can be disabled by setting: GOEXPERIMENT=noframepointer. Fixes #10110 Change-Id: I1bfaca6dba29a63009d7c6ab04ed7a1413d9479e Reviewed-on: https://go-review.googlesource.com/61511Reviewed-by: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Than McIntosh authored
When generation DWARF inline info records, the current implementation includes a sorting pass that reorders a subprogram's child variable DIEs based on class (param/auto) and name. This sorting is no longer needed, and can cause problems for a debugger (if we want to use the DWARF info for creating a call to an optimized function); this patch removes it. Ordering of DWARF subprogram variable/parameter DIEs is still deterministic with this change, since it is keyed off the order in which vars appear in the pre-inlining function "Dcl" list. Updates #27039 Change-Id: I3b91290d11bb3b9b36fb61271d80b801841401ee Reviewed-on: https://go-review.googlesource.com/131895Reviewed-by: Heschi Kreinick <heschi@google.com>
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Ben Shi authored
Lookup is not supported on android, and the test syscall/exec_linux_test.go which relies on it will fail on android/arm64. Fixes #27327 Change-Id: I6fdb8992d4634ac7e3689360ff114e9431b5e90c Reviewed-on: https://go-review.googlesource.com/131995Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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- 28 Aug, 2018 13 commits
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Alessandro Arzilli authored
Moves type name mangling after deadcode elimination. The motivation for doing this is to create a space between deadcode elimination and type name mangling where DWARF generation for types and variables can exist, to fix issue #23733. Change-Id: I9db8ecc0f4efe3df6c1e4025f02642fd452f9a39 Reviewed-on: https://go-review.googlesource.com/111236Reviewed-by: Heschi Kreinick <heschi@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com> Run-TryBot: Heschi Kreinick <heschi@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Dave Brophy authored
This fixes the unwanted behaviour where printing a zero float with the #v fmt verb outputs "0" - e.g. missing the trailing decimal. This means that the output would be interpreted as an int rather than a float when parsed as Go source. After this change the the output is "0.0". Fixes #26363 Change-Id: Ic5c060522459cd5ce077675d47c848b22ddc34fa GitHub-Last-Rev: adfb061363f0566acec134c81be9a3dcb1f4cac8 GitHub-Pull-Request: golang/go#26383 Reviewed-on: https://go-review.googlesource.com/123956Reviewed-by: Daniel Martí <mvdan@mvdan.cc> Reviewed-by: Rob Pike <r@golang.org> Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Cherry Zhang authored
Duplicated anonymous interfaces caused nondeterministic build. The fix is CL 129515. This CL adds a test. Updates #27013. Change-Id: I6b7e1bbfc943c22e8e6f32c145f7aebb567cef15 Reviewed-on: https://go-review.googlesource.com/129680 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Than McIntosh authored
This patch contains the remnants of CL (122482), which was intended to reduce memory allocation in 'relocsym'. Another CL (113637) went in first that included pretty much all of the code changes in 122482, however there are some changes to comments that are worth preserving. Change-Id: Iacdbd2bfe3b7ca2656596570f06ce9a646211913 Reviewed-on: https://go-review.googlesource.com/122482Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Taesu Pyo authored
Fixes #26444 Fixes #27275 Change-Id: I9e8cbff79f7643ca8964c572c1a98172b6831730 GitHub-Last-Rev: 7eea2158b67ccab34b45a21e8f4289c36de02d93 GitHub-Pull-Request: golang/go#26719 Reviewed-on: https://go-review.googlesource.com/126897Reviewed-by: Daniel Martí <mvdan@mvdan.cc> Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Than McIntosh authored
Comment changes to fix typos, no code changes. Change-Id: I6c915f183025587fc479d14f5d2c885767348b1b Reviewed-on: https://go-review.googlesource.com/131615Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Fazlul Shahriar authored
Fixes #27294 Change-Id: I8db5ca0f0c690bf532d3d33b8ed7d2633ad1702b Reviewed-on: https://go-review.googlesource.com/131855Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Tobias Klauser authored
After CL 130736 there are no empty function declarations this package anymore, so empty.s is no longer needed. Change-Id: Ic4306f10ad8a31777a3337870ce19e14c1510f3b Reviewed-on: https://go-review.googlesource.com/131835 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Yasuhiro Matsumoto authored
Add implementation of AF_UNIX. This works only on Windows 10. https://blogs.msdn.microsoft.com/commandline/2017/12/19/af_unix-comes-to-windows/ Fixes #26072 Change-Id: I76a96a472385a17901885271622fbe55d66bb720 Reviewed-on: https://go-review.googlesource.com/125456 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
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Eric Ponce authored
Change-Id: Ibef5f96ea588d17eac1c96ee3992e01943ba0fef Reviewed-on: https://go-review.googlesource.com/131496 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Ian Lance Taylor authored
Strip a trailing "le" from the GOARCH value when calculating the GOxxx environment variable that affects it. Fixes #27260 Change-Id: I081f30d5dc19281901551823f4f56be028b5f71a Reviewed-on: https://go-review.googlesource.com/131379Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Ben Shi authored
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>
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Guoliang Wang authored
Fixes #26539 Change-Id: I6d403c1bbb552e1f1bdcc09a7ccd60b50617e0fc GitHub-Last-Rev: 0b5262df5d99504523fd7a4665cb70a3cc6b0a09 GitHub-Pull-Request: golang/go#26544 Reviewed-on: https://go-review.googlesource.com/125443 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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- 27 Aug, 2018 3 commits
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Ben Shi authored
The CMP/CMN/TST/TEQ perform similar to SUB/ADD/AND/XOR except the result is abondoned, and only NZCV flags are affected. This CL implements further optimization with them. 1. A micro benchmark test gets more than 9% improvment. TSTTEQ-4 6.99ms ± 0% 6.35ms ± 0% -9.15% (p=0.000 n=33+36) (https://github.com/benshi001/ugo1/blob/master/tstteq2_test.go) 2. The go1 benckmark shows no regression, excluding noise. name old time/op new time/op delta BinaryTree17-4 25.7s ± 1% 25.7s ± 1% ~ (p=0.830 n=40+40) Fannkuch11-4 13.3s ± 0% 13.2s ± 0% -0.65% (p=0.000 n=40+34) FmtFprintfEmpty-4 394ns ± 0% 394ns ± 0% ~ (p=0.819 n=40+40) FmtFprintfString-4 677ns ± 0% 677ns ± 0% +0.06% (p=0.039 n=39+40) FmtFprintfInt-4 707ns ± 0% 706ns ± 0% -0.14% (p=0.000 n=40+39) FmtFprintfIntInt-4 1.04µs ± 0% 1.04µs ± 0% +0.10% (p=0.000 n=29+31) FmtFprintfPrefixedInt-4 1.10µs ± 0% 1.11µs ± 0% +0.65% (p=0.000 n=39+37) FmtFprintfFloat-4 2.27µs ± 0% 2.26µs ± 0% -0.53% (p=0.000 n=39+40) FmtManyArgs-4 3.96µs ± 0% 3.96µs ± 0% +0.10% (p=0.000 n=39+40) GobDecode-4 53.4ms ± 1% 52.8ms ± 2% -1.10% (p=0.000 n=39+39) GobEncode-4 50.3ms ± 3% 50.4ms ± 2% ~ (p=0.089 n=40+39) Gzip-4 2.62s ± 0% 2.64s ± 0% +0.60% (p=0.000 n=40+39) Gunzip-4 312ms ± 0% 312ms ± 0% +0.02% (p=0.030 n=40+39) HTTPClientServer-4 1.01ms ± 7% 0.98ms ± 7% -2.37% (p=0.000 n=40+39) JSONEncode-4 126ms ± 1% 126ms ± 1% -0.38% (p=0.004 n=39+39) JSONDecode-4 423ms ± 0% 426ms ± 2% +0.72% (p=0.001 n=39+40) Mandelbrot200-4 18.4ms ± 0% 18.4ms ± 0% +0.04% (p=0.000 n=38+40) GoParse-4 22.8ms ± 0% 22.6ms ± 0% -0.68% (p=0.000 n=35+40) RegexpMatchEasy0_32-4 699ns ± 0% 704ns ± 0% +0.73% (p=0.000 n=27+40) RegexpMatchEasy0_1K-4 4.27µs ± 0% 4.26µs ± 0% -0.09% (p=0.000 n=35+38) RegexpMatchEasy1_32-4 741ns ± 0% 735ns ± 0% -0.85% (p=0.000 n=40+35) RegexpMatchEasy1_1K-4 5.53µs ± 0% 5.49µs ± 0% -0.69% (p=0.000 n=39+40) RegexpMatchMedium_32-4 1.07µs ± 0% 1.04µs ± 2% -2.34% (p=0.000 n=40+40) RegexpMatchMedium_1K-4 261µs ± 0% 261µs ± 0% -0.16% (p=0.000 n=40+39) RegexpMatchHard_32-4 14.9µs ± 0% 14.9µs ± 0% -0.18% (p=0.000 n=39+40) RegexpMatchHard_1K-4 445µs ± 0% 446µs ± 0% +0.09% (p=0.000 n=36+34) Revcomp-4 41.8ms ± 1% 41.8ms ± 1% ~ (p=0.595 n=39+38) Template-4 530ms ± 1% 528ms ± 1% -0.49% (p=0.000 n=40+40) TimeParse-4 3.39µs ± 0% 3.42µs ± 0% +0.98% (p=0.000 n=36+38) TimeFormat-4 6.12µs ± 0% 6.07µs ± 0% -0.81% (p=0.000 n=34+38) [Geo mean] 384µs 383µs -0.24% name old speed new speed delta GobDecode-4 14.4MB/s ± 1% 14.5MB/s ± 2% +1.11% (p=0.000 n=39+39) GobEncode-4 15.3MB/s ± 3% 15.2MB/s ± 2% ~ (p=0.104 n=40+39) Gzip-4 7.40MB/s ± 1% 7.36MB/s ± 0% -0.60% (p=0.000 n=40+39) Gunzip-4 62.2MB/s ± 0% 62.1MB/s ± 0% -0.02% (p=0.047 n=40+39) JSONEncode-4 15.4MB/s ± 1% 15.4MB/s ± 2% +0.39% (p=0.002 n=39+39) JSONDecode-4 4.59MB/s ± 0% 4.56MB/s ± 2% -0.71% (p=0.000 n=39+40) GoParse-4 2.54MB/s ± 0% 2.56MB/s ± 0% +0.72% (p=0.000 n=26+40) RegexpMatchEasy0_32-4 45.8MB/s ± 0% 45.4MB/s ± 0% -0.75% (p=0.000 n=38+40) RegexpMatchEasy0_1K-4 240MB/s ± 0% 240MB/s ± 0% +0.09% (p=0.000 n=35+38) RegexpMatchEasy1_32-4 43.1MB/s ± 0% 43.5MB/s ± 0% +0.84% (p=0.000 n=40+39) RegexpMatchEasy1_1K-4 185MB/s ± 0% 186MB/s ± 0% +0.69% (p=0.000 n=39+40) RegexpMatchMedium_32-4 936kB/s ± 1% 959kB/s ± 2% +2.38% (p=0.000 n=40+40) RegexpMatchMedium_1K-4 3.92MB/s ± 0% 3.93MB/s ± 0% +0.18% (p=0.000 n=39+40) RegexpMatchHard_32-4 2.15MB/s ± 0% 2.15MB/s ± 0% +0.19% (p=0.000 n=40+40) RegexpMatchHard_1K-4 2.30MB/s ± 0% 2.30MB/s ± 0% ~ (all equal) Revcomp-4 60.8MB/s ± 1% 60.8MB/s ± 1% ~ (p=0.600 n=39+38) Template-4 3.66MB/s ± 1% 3.68MB/s ± 1% +0.46% (p=0.000 n=40+40) [Geo mean] 12.8MB/s 12.8MB/s +0.27% Change-Id: I849161169ecf0876a04b7c1d3990fa8d1435215e Reviewed-on: https://go-review.googlesource.com/122855 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com>
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Ben Shi authored
Some indexed load/store rules lack of type information, and this CL adds that for them. Change-Id: Icac315ccb83a2f5bf30b056d4667d5b59eb4e5e2 Reviewed-on: https://go-review.googlesource.com/128455Reviewed-by: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Benny Siegert authored
The race detector is not fully functional on NetBSD yet. Without this change, all.bash fails in TestOutput. This unbreaks the netbsd-amd64 builder. Update #26403 Fixes #27268 Change-Id: I2c7015692d3632aa1037f40155d4fc5c7bb1d8c3 Reviewed-on: https://go-review.googlesource.com/131555Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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- 26 Aug, 2018 5 commits
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Alberto Donizetti authored
In the compiler frontend, walkinrange indiscriminately calls Int64() on const CTINT nodes, even though Int64's return value is undefined for anything over 2⁶³ (in practise, it'll return a negative number). This causes the introduction of bad constants during rewrites of unsigned expressions, which make the compiler reject valid Go programs. This change introduces a preliminary check that Int64() is safe to call on the consts on hand. If it isn't, walkinrange exits without doing any rewrite. Fixes #27143 Change-Id: I2017073cae65468a521ff3262d4ea8ab0d7098d9 Reviewed-on: https://go-review.googlesource.com/130735 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
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Tobias Klauser authored
This reverts commit e6c15945. Reason for revert: breaks the Dragonfly builders. Fixes #27245 Change-Id: I2c147a5726aec28647f6ef5eb8f9db5efa3a9fd0 Reviewed-on: https://go-review.googlesource.com/131497 Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Daniel Martí authored
Given the following types: type S2 struct{ Field string } type S struct{ *S2 } Marshalling a value of type T1 should result in "{}", as there's no way to access any value of T2.Field. This is how Go 1.10 and earlier versions behave. However, in the recent refactor golang.org/cl/125417 I broke this logic. When the encoder found an anonymous struct pointer field that was nil, it no longer skipped the embedded fields underneath it. This can be seen in the added test: --- FAIL: TestAnonymousFields/EmbeddedFieldBehindNilPointer (0.00s) encode_test.go:430: Marshal() = "{\"Field\":\"\\u003c*json.S2 Value\\u003e\"}", want "{}" The human error was a misplaced label, meaning we weren't actually skipping the right loop iteration. Fix that. Change-Id: Iba8a4a77d358dac73dcba4018498fe4f81afa263 Reviewed-on: https://go-review.googlesource.com/131376 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Daniel Martí authored
TestRawMessage now passes without the need for the RawMessage field to be a pointer. The TODO dates all the way back to 2010, so I presume the issue has since been fixed. TestNullRawMessage tested the decoding of a JSON null into a *RawMessage. The existing behavior was correct, but for the sake of completeness a non-pointer RawMessage field has been added too. The non-pointer field behaves differently, as one can read in the docs: To unmarshal JSON into a value implementing the Unmarshaler interface, Unmarshal calls that value's UnmarshalJSON method, including when the input is a JSON null. Change-Id: Iabaed75d4ed10ea427d135ee1b80c6e6b83b2e6e Reviewed-on: https://go-review.googlesource.com/131377 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Martin Möhrmann authored
This makes the runtime.support_sse2 variable unused so it is removed in this CL too. Change-Id: Ia8b9ffee7ac97128179f74ef244b10315e44c234 Reviewed-on: https://go-review.googlesource.com/131455 Run-TryBot: Martin Möhrmann <moehrmann@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
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