- 03 Mar, 2016 23 commits
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David du Colombier authored
The ssa compiler uses the duffcopy and duffzero functions, which rely on the MOVUPS instructions. However, this doesn't work on Plan 9, since floating point operations are not allowed in the note handler. This change disables the use of duffcopy and duffzero on Plan 9 in the ssa compiler. Updates #14605. Change-Id: I017f8ff83de00eabaf7e146b4344a863db1dfddc Reviewed-on: https://go-review.googlesource.com/20171Reviewed-by:
Keith Randall <khr@golang.org> Run-TryBot: David du Colombier <0intro@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Ian Lance Taylor authored
I tried to write a program to convert *NodeList to Node, but ran into too many problem cases. I'm backing off and trying a more iterative approach using interfaces. This CL adds an interface for iteration over either a *NodeList or a Nodes. I changed typechecklist to use it, to show how it works. After NodeList is eliminated, we can change the typechecklist parameter type to Nodes. Passes toolstash -cmp. Change-Id: I5c7593714b020d20868b99151b1e7cadbbdbc397 Reviewed-on: https://go-review.googlesource.com/20190 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org>
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David Crawshaw authored
This CL introduces a mergestrings pass after the reachability analysis to combine all reachable go.string."..." character data symbols into a single symbol. Shrinks juju by 1.2mb (1.5%). Shrinks cmd/go by 0.5% when building without DWARF. No noticable effect on linker speed. Change-Id: I2ba3e60bf418f65766bda257f6ca9eea26d895b6 Reviewed-on: https://go-review.googlesource.com/20165 Run-TryBot: David Crawshaw <crawshaw@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
The listsort function is no longer used, except in a test. Change the test to use sort.Sort instead. Change-Id: Ib634705cc1bc3b1d8fc3795bd4ed2894e6abc284 Reviewed-on: https://go-review.googlesource.com/19964Reviewed-by:
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Keith Randall authored
Make sure we don't depend on map iterator order. Fixes #14600 Change-Id: Iac0e0c8689f3ace7a4dc8e2127e2fd3c8545bd29 Reviewed-on: https://go-review.googlesource.com/20158 Run-TryBot: Keith Randall <khr@golang.org> Reviewed-by:
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Keith Randall authored
If we're about to enter a loop, load values which are live and will soon be used in the loop into registers. name old time/op new time/op delta BinaryTree17-8 2.80s ± 4% 2.62s ± 2% -6.43% (p=0.008 n=5+5) Fannkuch11-8 2.45s ± 2% 2.14s ± 1% -12.43% (p=0.008 n=5+5) FmtFprintfEmpty-8 49.0ns ± 1% 48.4ns ± 1% -1.35% (p=0.032 n=5+5) FmtFprintfString-8 160ns ± 1% 153ns ± 0% -4.63% (p=0.008 n=5+5) FmtFprintfInt-8 152ns ± 0% 150ns ± 0% -1.57% (p=0.000 n=5+4) FmtFprintfIntInt-8 252ns ± 2% 244ns ± 1% -3.02% (p=0.008 n=5+5) FmtFprintfPrefixedInt-8 223ns ± 0% 223ns ± 0% ~ (all samples are equal) FmtFprintfFloat-8 293ns ± 2% 291ns ± 2% ~ (p=0.389 n=5+5) FmtManyArgs-8 956ns ± 0% 936ns ± 0% -2.05% (p=0.008 n=5+5) GobDecode-8 7.18ms ± 0% 7.11ms ± 0% -1.02% (p=0.008 n=5+5) GobEncode-8 6.12ms ± 3% 6.07ms ± 1% ~ (p=0.690 n=5+5) Gzip-8 284ms ± 1% 284ms ± 0% ~ (p=1.000 n=5+5) Gunzip-8 40.8ms ± 1% 40.6ms ± 1% ~ (p=0.310 n=5+5) HTTPClientServer-8 69.8µs ± 1% 72.2µs ± 4% ~ (p=0.056 n=5+5) JSONEncode-8 16.1ms ± 2% 16.2ms ± 1% ~ (p=0.151 n=5+5) JSONDecode-8 54.9ms ± 0% 57.0ms ± 1% +3.79% (p=0.008 n=5+5) Mandelbrot200-8 4.35ms ± 0% 4.39ms ± 0% +0.85% (p=0.008 n=5+5) GoParse-8 3.56ms ± 1% 3.42ms ± 1% -4.03% (p=0.008 n=5+5) RegexpMatchEasy0_32-8 75.6ns ± 1% 75.0ns ± 0% -0.83% (p=0.016 n=5+4) RegexpMatchEasy0_1K-8 250ns ± 0% 252ns ± 1% +0.80% (p=0.016 n=4+5) RegexpMatchEasy1_32-8 75.0ns ± 0% 75.4ns ± 2% ~ (p=0.206 n=5+5) RegexpMatchEasy1_1K-8 401ns ± 0% 398ns ± 1% ~ (p=0.056 n=5+5) RegexpMatchMedium_32-8 119ns ± 0% 118ns ± 0% -0.84% (p=0.008 n=5+5) RegexpMatchMedium_1K-8 36.6µs ± 0% 36.9µs ± 0% +0.91% (p=0.008 n=5+5) RegexpMatchHard_32-8 1.95µs ± 1% 1.92µs ± 0% -1.23% (p=0.032 n=5+5) RegexpMatchHard_1K-8 58.3µs ± 1% 58.1µs ± 1% ~ (p=0.548 n=5+5) Revcomp-8 425ms ± 1% 389ms ± 1% -8.39% (p=0.008 n=5+5) Template-8 65.5ms ± 1% 63.6ms ± 1% -2.86% (p=0.008 n=5+5) TimeParse-8 363ns ± 0% 354ns ± 1% -2.59% (p=0.008 n=5+5) TimeFormat-8 363ns ± 0% 364ns ± 1% ~ (p=0.159 n=5+5) Fixes #14511 Change-Id: I1b79d2545271fa90d5b04712cc25573bdc94f2ce Reviewed-on: https://go-review.googlesource.com/20151 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
David Chase <drchase@google.com>
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David Crawshaw authored
Change-Id: I939129da0e71a7ccc61bec79515a34f0b1e59502 Reviewed-on: https://go-review.googlesource.com/20162Reviewed-by:
Dave Cheney <dave@cheney.net> Reviewed-by:
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David Crawshaw authored
Change-Id: Idc95452088d23be8e18522209d98f789dfca070b Reviewed-on: https://go-review.googlesource.com/20161Reviewed-by:
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Caleb Spare authored
Fixes #14547. Change-Id: Ic175ee8f7e65b9b99f1f47fbf267a2aba7c8fec7 Reviewed-on: https://go-review.googlesource.com/20010 Run-TryBot: Caleb Spare <cespare@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Martin Möhrmann authored
No extra buffering is needed to save the encoding since the left padding can be computed and written out before the encoding is generated. Add extra tests to both string and byte slice formatting. name old time/op new time/op delta SprintfHexString-2 410ns ± 3% 194ns ± 3% -52.60% (p=0.000 n=20+19) SprintfHexBytes-2 431ns ± 3% 202ns ± 2% -53.13% (p=0.000 n=18+20) Change-Id: Ibca4316427c89f834e4faee61614493c7eedb42b Reviewed-on: https://go-review.googlesource.com/20097 Run-TryBot: Rob Pike <r@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Rob Pike <r@golang.org>
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Keith Randall authored
The ODOTPTRs introduced in CL #19814 don't have field names, just offsets. The fieldtrack experiment crashes when examining them. Instead, just ignore them. We'll never track these fields anyway. It would be nice to have the runtime type struct build in the compiler (like we do sudog, for example) so we could use its fieldnames. Doesn't seem worth it just for this CL. Change-Id: I5e75024f5a8333eb7439543b3f466ea40213a1b9 Reviewed-on: https://go-review.googlesource.com/20157Reviewed-by:
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Matthew Dempsky authored
Change-Id: Ib0a116a78f61eafe88a0ea5dc6733750ae755fdf Reviewed-on: https://go-review.googlesource.com/20156 Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by:
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Michael Munday authored
The new Minalign field sets the minimum alignment for all symbols. This is required for the upcoming s390x port which requires symbols be 2-byte aligned for efficient relative addressing. All preexisting architectures have Minalign set to 1 which means that this commit should have no effect. I tested values of 2, 4 and 8 on linux amd64 and the tests appear to pass. Increasing Minalign to 16 appears to break the runtime. I think this is due to assumptions made about the layout of module data. toolstash -cmp on linux amd64 shows no changes due to this commit. Resolves #14604 Change-Id: I0fe042d52c4e4732eba5fabcd0c31102a2408764 Reviewed-on: https://go-review.googlesource.com/20149Reviewed-by:
Minux Ma <minux@golang.org> Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Mikio Hara authored
This change consolidates functions and methods related to TCPAddr, TCPConn and TCPListener for maintenance purpose, especially for documentation. Also refactors Dial error code paths. The followup changes will update comments and examples. Updates #10624. Change-Id: I3333ee218ebcd08928f9e2826cd1984d15ea153e Reviewed-on: https://go-review.googlesource.com/20009Reviewed-by:
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Robert Griesemer authored
Change-Id: I59ce1b40bc3472cc92a9a0a9fbd32342e0b945ad Reviewed-on: https://go-review.googlesource.com/20152Reviewed-by:
Matthew Dempsky <mdempsky@google.com>
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Robert Griesemer authored
Change-Id: Ia3e5d62b9d38a6c356baec8eb88b2bdabff5820f Reviewed-on: https://go-review.googlesource.com/20150Reviewed-by:
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Joe Tsai authored
Over the years as more bugs were discovered with the bzip2 library, new Tests were appended the unit tests and the tests became gnarly. Clean up the tests to be more consistent with modern Go style in addition to coalescing common tests into a general version that iterates over a list of input/output pairs. This has the advantage that the input, output, and test code are all in the same area, rather than being sprawled around the test file. There is no loss of test coverage. Change-Id: I377ed89378f0b89763d4a56ffc37b22d9c2a369e Reviewed-on: https://go-review.googlesource.com/20133 Run-TryBot: Joe Tsai <joetsai@digital-static.net> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Burcu Dogan authored
/etc/services is not available on Android. The pure Go implementation of LookupPort will never succeed on Android. Skipping the test. Updates #14576. Change-Id: I707ac24aea3f988656b95b1816ee5c9690106985 Reviewed-on: https://go-review.googlesource.com/20154Reviewed-by:
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Rob Pike authored
It appears to be a trivial dreg. Unreferenced. Gone. Change-Id: I4a5ceed48e84254bc8a07fdb04487a18a0edf965 Reviewed-on: https://go-review.googlesource.com/20122 Run-TryBot: Rob Pike <r@golang.org> Reviewed-by:
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Matthew Dempsky authored
Arch backends already provide us Widthint and Widthptr, which is ample information to figure out how to define the universal "int", "uint", and "uintptr" types. No need for providing a generic typedef mechanism beyond that. Change-Id: I35c0c17a67c80605a9208b93d77d6960b2cbb17d Reviewed-on: https://go-review.googlesource.com/20153 Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by:
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Chris Broadfoot authored
Fixes #14378. Change-Id: I680b523c01576e42f1dbda9131d1f6bb99b3668b Reviewed-on: https://go-review.googlesource.com/20138Reviewed-by:
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David Crawshaw authored
No performance improvement, but possibly more readable. Linking juju: tip: real 0m5.470s user 0m6.131s this: real 0m5.392s user 0m6.087s Change-Id: I578e94fbe6c11b19d79034c33b3db31d9689d439 Reviewed-on: https://go-review.googlesource.com/20108Reviewed-by:
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Brad Fitzpatrick authored
All callers already had strings. No need to generate byte slice copies to work on bytes. Performance not measured, but probably helps at least a bit. Change-Id: Iec3230b69724fac68caae7aad46f2ce1504e82e5 Reviewed-on: https://go-review.googlesource.com/20136Reviewed-by:
David Crawshaw <crawshaw@golang.org> Reviewed-by:
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- 02 Mar, 2016 17 commits
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Alex Brainman authored
Latest version of gcc (tdm-1) 5.1.0 refuses to compile our code on windows/386 (see issue for details). Rewrite the code. Fixes #14328 Change-Id: I70f4f063282bd2958cd2175f3974369dd49dd8dc Reviewed-on: https://go-review.googlesource.com/20008Reviewed-by:
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David Crawshaw authored
Looks a tiny bit faster, which is a surprise. Probably noise. Motivation is making the LSym structure a little easier to understand. Linking juju, best of 10: before: real 0m4.811s user 0m5.582s after: real 0m4.611s user 0m5.267s Change-Id: Idbedaf4a6e6e199036a1bbb6760e98c94ed2c282 Reviewed-on: https://go-review.googlesource.com/20142Reviewed-by:
Michael Hudson-Doyle <michael.hudson@canonical.com> Run-TryBot: David Crawshaw <crawshaw@golang.org> Reviewed-by:
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Robert Griesemer authored
Function bodies are not yet hooked up because the node structure is not 100% correct. This commit establishes that we can correctly write bodies out and read them in again. - export and import all exported inlined function bodies: (export GO_GCFLAGS="-newexport"; sh all.bash) working - inlined functions are not yet hooked up (just dropped on the floor) - improved tracing output and error messages - make mkbuiltin.go work for both textual and binary export data so we can run tests with the new format Change-Id: I70dc4de419df1b604389c3747041d6dba8730b0b Reviewed-on: https://go-review.googlesource.com/16284Reviewed-by:
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David Crawshaw authored
Also stop creating a map for each symbol, as it does not seem to help. Linking juju: tip: real 0m5.470s user 0m6.131s this: real 0m4.811s user 0m5.582s Change-Id: Ib3d931c996396a00942581770ff32df1eb8d6615 Reviewed-on: https://go-review.googlesource.com/20140 Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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David Chase authored
uint8(s.b & 0xff) ought to produce same code as uint8(s.b) but it did not. RLH found this one looking for moles to whack in the GC code. Change-Id: I883d68ec7a5746d652712be84a274a11256b3b33 Reviewed-on: https://go-review.googlesource.com/20141Reviewed-by:
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Robert Griesemer authored
Follow-up to https://go-review.googlesource.com/20131 . Change-Id: Id8351fa39f24e6ea488cdbfcb855b69a31ffff31 Reviewed-on: https://go-review.googlesource.com/20134 Run-TryBot: Robert Griesemer <gri@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Martin Möhrmann authored
Count only the runes up to the requested precision to decide where to truncate a string. Change the loop within truncate to need fewer jumps. name old time/op new time/op delta SprintfTruncateString-2 188ns ± 3% 155ns ± 3% -17.43% (p=0.000 n=20+20) Change-Id: I17ca9fc0bb8bf7648599df48e4785251bbc31e99 Reviewed-on: https://go-review.googlesource.com/20098Reviewed-by:
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Robert Griesemer authored
Change-Id: Ic9ca792b55cc4ebd0ac6cfa2fbdb58030893bacd Reviewed-on: https://go-review.googlesource.com/20132 Run-TryBot: Robert Griesemer <gri@golang.org> Reviewed-by:
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Russ Cox authored
This is especially helpful in programs with very large numbers of goroutines: the bulk of the goroutines will show up at the top. Before: 1 @ 0x86ab8 0x86893 0x82164 0x8e7ce 0x7b798 0x5b871 # 0x86ab8 runtime/pprof.writeRuntimeProfile+0xb8 /Users/rsc/go/src/runtime/pprof/pprof.go:545 # 0x86893 runtime/pprof.writeGoroutine+0x93 /Users/rsc/go/src/runtime/pprof/pprof.go:507 # 0x82164 runtime/pprof.(*Profile).WriteTo+0xd4 /Users/rsc/go/src/runtime/pprof/pprof.go:236 # 0x8e7ce runtime/pprof_test.TestGoroutineCounts+0x15e /Users/rsc/go/src/runtime/pprof/pprof_test.go:603 # 0x7b798 testing.tRunner+0x98 /Users/rsc/go/src/testing/testing.go:473 1 @ 0x2d373 0x2d434 0x560f 0x516b 0x7cd42 0x7b861 0x2297 0x2cf90 0x5b871 # 0x7cd42 testing.RunTests+0x8d2 /Users/rsc/go/src/testing/testing.go:583 # 0x7b861 testing.(*M).Run+0x81 /Users/rsc/go/src/testing/testing.go:515 # 0x2297 main.main+0x117 runtime/pprof/_test/_testmain.go:72 # 0x2cf90 runtime.main+0x2b0 /Users/rsc/go/src/runtime/proc.go:188 10 @ 0x2d373 0x2d434 0x560f 0x516b 0x8e5b6 0x5b871 # 0x8e5b6 runtime/pprof_test.func1+0x36 /Users/rsc/go/src/runtime/pprof/pprof_test.go:582 50 @ 0x2d373 0x2d434 0x560f 0x516b 0x8e656 0x5b871 # 0x8e656 runtime/pprof_test.func3+0x36 /Users/rsc/go/src/runtime/pprof/pprof_test.go:584 40 @ 0x2d373 0x2d434 0x560f 0x516b 0x8e606 0x5b871 # 0x8e606 runtime/pprof_test.func2+0x36 /Users/rsc/go/src/runtime/pprof/pprof_test.go:583 After: 50 @ 0x2d373 0x2d434 0x560f 0x516b 0x8ecc6 0x5b871 # 0x8ecc6 runtime/pprof_test.func3+0x36 /Users/rsc/go/src/runtime/pprof/pprof_test.go:584 40 @ 0x2d373 0x2d434 0x560f 0x516b 0x8ec76 0x5b871 # 0x8ec76 runtime/pprof_test.func2+0x36 /Users/rsc/go/src/runtime/pprof/pprof_test.go:583 10 @ 0x2d373 0x2d434 0x560f 0x516b 0x8ec26 0x5b871 # 0x8ec26 runtime/pprof_test.func1+0x36 /Users/rsc/go/src/runtime/pprof/pprof_test.go:582 1 @ 0x2d373 0x2d434 0x560f 0x516b 0x7cd42 0x7b861 0x2297 0x2cf90 0x5b871 # 0x7cd42 testing.RunTests+0x8d2 /Users/rsc/go/src/testing/testing.go:583 # 0x7b861 testing.(*M).Run+0x81 /Users/rsc/go/src/testing/testing.go:515 # 0x2297 main.main+0x117 runtime/pprof/_test/_testmain.go:72 # 0x2cf90 runtime.main+0x2b0 /Users/rsc/go/src/runtime/proc.go:188 1 @ 0x87128 0x86f03 0x82164 0x8ee30 0x7b798 0x5b871 # 0x87128 runtime/pprof.writeRuntimeProfile+0xb8 /Users/rsc/go/src/runtime/pprof/pprof.go:566 # 0x86f03 runtime/pprof.writeGoroutine+0x93 /Users/rsc/go/src/runtime/pprof/pprof.go:528 # 0x82164 runtime/pprof.(*Profile).WriteTo+0xd4 /Users/rsc/go/src/runtime/pprof/pprof.go:236 # 0x8ee30 runtime/pprof_test.TestGoroutineCounts+0x150 /Users/rsc/go/src/runtime/pprof/pprof_test.go:603 # 0x7b798 testing.tRunner+0x98 /Users/rsc/go/src/testing/testing.go:473 Change-Id: I43de9eee2d96f9c46f7b0fbe099a0571164324f5 Reviewed-on: https://go-review.googlesource.com/20107Reviewed-by:
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Robert Griesemer authored
- removed lots of unnecessary int(x) casts - removed parserline() - was inconsistently used anyway - minor simplifications in dcl.go Change-Id: Ibf7de679eea528a31c9692ef1c76a1d9b3239211 Reviewed-on: https://go-review.googlesource.com/20131Reviewed-by:
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Ian Lance Taylor authored
Change-Id: I719231466286b3c0135314388a7c560ef44d7c35 Reviewed-on: https://go-review.googlesource.com/20130 Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by:
Robert Griesemer <gri@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Tamir Duberstein authored
This promotes a connection hang during TLS handshake to a proper error. This doesn't fully address #14539 because the error reported in that case is a write-on-socket-not-connected error, which implies that an earlier error during connection setup is not being checked, but it is an improvement over the current behaviour. Updates #14539. Change-Id: I0571a752d32d5303db48149ab448226868b19495 Reviewed-on: https://go-review.googlesource.com/19990Reviewed-by:
Adam Langley <agl@golang.org>
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David Crawshaw authored
It looks like the compiler still uses the Cfunc flag for functions marked as //go:systemstack, but if I'm reading this right, that doesn't apply here and the linker no longer needs Cfunc. Change-Id: I63b9192c2f52f41401263c29dc8dfd8be8a901a1 Reviewed-on: https://go-review.googlesource.com/20105 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Russ Cox <rsc@golang.org>
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Joe Tsai authored
Unlike RFC 1951 (DEFLATE), bzip2 does not use zero-length Huffman codes to indicate that the symbol is missing. Instead, bzip2 uses a sparse bitmap to indicate which symbols are present. Thus, it is undefined what happens when a length of zero is used. Thus, fix the parsing logic so that the length cannot ever go below 1-bit similar to how the C logic does things. To confirm that the C bzip2 utility chokes on this data: $ echo "425a6836314159265359b1f7404b000000400040002000217d184682ee48 a70a12163ee80960" | xxd -r -p | bzip2 -d bzip2: Data integrity error when decompressing For reference see: bzip2-1.0.6/decompress.c:320 Change-Id: Ic1568f8e7f80cdea51d887b4d712cc239c2fe85e Reviewed-on: https://go-review.googlesource.com/20119 Run-TryBot: Joe Tsai <joetsai@digital-static.net> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Mohit Agarwal authored
Updates #11041 Change-Id: I12c20beab75d7981efe470eb418e4b58dc8eb066 Reviewed-on: https://go-review.googlesource.com/20002Reviewed-by:
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David Crawshaw authored
Change-Id: Ic99bd63c96b1eba5cc2b5cd2be3a575890a02996 Reviewed-on: https://go-review.googlesource.com/20103 Run-TryBot: David Crawshaw <crawshaw@golang.org> Reviewed-by:
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David Crawshaw authored
This per-symbol table was written with the strategy: 1. record offset and write fake header 2. write body 3. seek back to fake header 4. write real header This CL collects the per-symbol body into a []byte, then writes the real header followed by the body to the output file. This saves two seeks per-symbol and overwriting the fake header. Small performance improvement (3.5%) in best-of-ten links of godoc: tip: real 0m1.132s user 0m1.256s this: real 0m1.090s user 0m1.210s I'm not sure if the performance measured here alone justifies it, but I think this is an easier to read style of code. Change-Id: I1663901eb7c2ee330591b8b6550cdff0402ed5dc Reviewed-on: https://go-review.googlesource.com/20074Reviewed-by:
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