- 26 Feb, 2016 8 commits
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David Crawshaw authored
Reduces binary size of cmd/go by 0.5%. For #6853. Change-Id: I5a4b814049580ab5098ad252d979f80b70d8a5f9 Reviewed-on: https://go-review.googlesource.com/19694Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: David Crawshaw <crawshaw@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Datong Sun authored
The existing documentation for ParsePKIXPublicKey is difficult to understand and the return type of the parsed public key are not mentioned explicitly. Descriptions about types of public key supported, as well as an example on how to use type assertions to determine return type of a parsed public key has been added. Fixes #14355 Change-Id: Ib9561efb34255292735742c0b3e835c4b97ac589 Reviewed-on: https://go-review.googlesource.com/19757Reviewed-by:
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Matthew Dempsky authored
The existing nested loops are too tricky for me to grok and don't seem necessary. Change-Id: I75c65c8470b799d6f4cfb05bb1b4796c5d7d32e7 Reviewed-on: https://go-review.googlesource.com/19927 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Robert Griesemer <gri@golang.org>
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Shenghou Ma authored
Change-Id: I9b79bd301d0b75ca1f16d4a05e3cb687a8428c14 Reviewed-on: https://go-review.googlesource.com/19884 Run-TryBot: Minux Ma <minux@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Andrew Gerrand authored
Fixes #14365 Change-Id: I082329fe7a1e06c774a32e0e24e5c8736bb5a037 Reviewed-on: https://go-review.googlesource.com/19877Reviewed-by:
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Matthew Dempsky authored
Errors have unique seq values (their index within the errors slice), so errcmp never needs to fallback to sorting by message text. Moreover, comparing by original index is exactly the purpose of using a stable sort algorithm (and sort.Stable was added in Go 1.2), so we really only need to compare by lineno. Change-Id: I7f534b72a05d899ae9788dc7ef0541dd92a8b578 Reviewed-on: https://go-review.googlesource.com/19929 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Matthew Dempsky authored
Previously, many error messages inconsistantly used either lexlineno and lineno. In general this works out okay because they're almost always the same. The only exceptional case is after lexing a multi-line raw string literal, where lineno will be the line number of the opening quote and lexlineno is the line number of the closing quote. This CL makes the compiler's error message more consistent: - Lexer error messages related to invalid byte sequences (i.e., NUL bytes, bad UTF-8 sequences, and non-initial BOMs) are emitted at lexlineno (i.e., the source line that contains the invalid byte sequence). - All other error messages (notably the parser's "syntax errors") now use lineno. The minor change from this is that bogus input like: package ` bogus` will emit "syntax error: unexpected string literal, expecting name" error at line 1, instead of line 2. - Instead of maintaining prevlineno all the time, just record it when/where actually needed and not already available elsewhere (which turns out to be just one function). - Lastly, we remove the legacy "syntax error near ..." fallback in Yerror, now that the parser always emits more detailed syntax error messages. Change-Id: Iaf5f784223d0385fa3a5b09ef2b2ad447feab02f Reviewed-on: https://go-review.googlesource.com/19925Reviewed-by: -
Keith Randall authored
REP-prefixed instructions have a large startup cost. Avoid them like the plague. benchmark old ns/op new ns/op delta BenchmarkIndexByte10-8 22.4 5.34 -76.16% Fixes #13983 Change-Id: I857e956e240fc9681d053f2584ccf24c1b272bb3 Reviewed-on: https://go-review.googlesource.com/18703Reviewed-by:
Minux Ma <minux@golang.org> Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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- 25 Feb, 2016 27 commits
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kortschak authored
Fixes #14498. Change-Id: I4cfab3e45898466179cefbd31c6f7f796da82363 Reviewed-on: https://go-review.googlesource.com/19874Reviewed-by:
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Austin Clements authored
_Genqueue and _Gscanenqueue were introduced as part of the GC quiesce code. The quiesce code was removed by 197aa9e6, but these states and some associated code stuck around. Remove them. Change-Id: I69df81881602d4a431556513dac2959668d27c20 Reviewed-on: https://go-review.googlesource.com/19638Reviewed-by:
Rick Hudson <rlh@golang.org> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Austin Clements authored
Change-Id: I1fa5e629b2890a8509559ce4ea17b74f47d71925 Reviewed-on: https://go-review.googlesource.com/19637Reviewed-by:
Ian Lance Taylor <iant@golang.org> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Austin Clements authored
Currently most uses of gcWork use the per-P gcWork, but there are two places that still use a stack-based gcWork. Simplify things by making these instead use the per-P gcWork. Change-Id: I712d012cce9dd5757c8541824e9641ac1c2a329c Reviewed-on: https://go-review.googlesource.com/19636Reviewed-by:
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Austin Clements authored
Currently markroot uses a gcWork on the stack and disposes of it immediately after marking one root. This used to be necessary because markroot was called from the depths of parfor, but now that we call it directly and have ready access to a gcWork at the call site, pass the gcWork in, use it directly in markroot, and share it across calls to markroot from the same P. Change-Id: Id7c3b811bfb944153760e01873c07c8d18909be1 Reviewed-on: https://go-review.googlesource.com/19635Reviewed-by:
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Austin Clements authored
When gcWork was first introduced, the compiler's escape analysis wasn't good enough to detect that that method receiver didn't escape, so we had to hack around this. Now that the compiler can figure out this for itself, remove these hacks. Change-Id: I9f73fab721e272410b8b6905b564e7abc03c0dfe Reviewed-on: https://go-review.googlesource.com/19634Reviewed-by:
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Austin Clements authored
Currently we clear the heap bitmap of a span both when we allocate that span *and* when we free it. There's no point in doing both, and we definitely have to write the heap bitmap when we allocate a span for pointer-sized objects, so switch to clearing only when we allocate a span. This results in a slight overall performance improvement; however, most of the benchmarks that get slower are very short, while the longer benchmarks generally got faster. name old time/op new time/op delta XBenchGarbage-12 2.48ms ± 1% 2.47ms ± 1% -0.58% (p=0.000 n=91+91) name old time/op new time/op delta BinaryTree17-12 2.85s ± 2% 2.85s ± 2% ~ (p=0.550 n=20+19) Fannkuch11-12 2.54s ± 0% 2.47s ± 1% -2.72% (p=0.000 n=19+18) FmtFprintfEmpty-12 51.3ns ± 4% 51.0ns ± 3% ~ (p=0.223 n=20+20) FmtFprintfString-12 169ns ± 0% 167ns ± 0% -1.18% (p=0.000 n=17+16) FmtFprintfInt-12 160ns ± 0% 161ns ± 0% +0.63% (p=0.000 n=16+15) FmtFprintfIntInt-12 267ns ± 0% 269ns ± 1% +0.62% (p=0.000 n=17+20) FmtFprintfPrefixedInt-12 234ns ± 1% 240ns ± 0% +2.80% (p=0.000 n=20+20) FmtFprintfFloat-12 316ns ± 0% 313ns ± 0% -0.76% (p=0.000 n=20+19) FmtManyArgs-12 1.04µs ± 0% 1.05µs ± 0% +0.45% (p=0.000 n=19+16) GobDecode-12 7.90ms ± 1% 7.81ms ± 0% -1.10% (p=0.000 n=18+18) GobEncode-12 6.61ms ± 1% 6.58ms ± 0% -0.46% (p=0.000 n=20+15) Gzip-12 320ms ± 1% 322ms ± 1% +0.47% (p=0.030 n=20+20) Gunzip-12 42.4ms ± 1% 42.6ms ± 0% +0.37% (p=0.000 n=20+20) HTTPClientServer-12 70.7µs ± 1% 70.6µs ± 2% ~ (p=0.784 n=18+20) JSONEncode-12 16.9ms ± 1% 16.8ms ± 0% -0.64% (p=0.000 n=20+20) JSONDecode-12 60.8ms ± 0% 58.6ms ± 1% -3.50% (p=0.000 n=17+18) Mandelbrot200-12 3.92ms ± 0% 3.91ms ± 0% -0.25% (p=0.000 n=19+19) GoParse-12 3.65ms ± 0% 3.68ms ± 1% +0.67% (p=0.000 n=17+16) RegexpMatchEasy0_32-12 102ns ± 1% 102ns ± 2% +0.67% (p=0.009 n=19+19) RegexpMatchEasy0_1K-12 350ns ± 0% 351ns ± 1% +0.34% (p=0.002 n=20+20) RegexpMatchEasy1_32-12 84.1ns ± 2% 84.2ns ± 2% ~ (p=0.799 n=20+18) RegexpMatchEasy1_1K-12 510ns ± 1% 508ns ± 1% -0.45% (p=0.000 n=20+17) RegexpMatchMedium_32-12 132ns ± 1% 134ns ± 1% +0.85% (p=0.000 n=20+19) RegexpMatchMedium_1K-12 40.0µs ± 1% 39.9µs ± 1% -0.29% (p=0.014 n=19+18) RegexpMatchHard_32-12 2.09µs ± 1% 2.05µs ± 0% -1.76% (p=0.000 n=20+18) RegexpMatchHard_1K-12 62.7µs ± 1% 61.8µs ± 1% -1.39% (p=0.000 n=20+19) Revcomp-12 541ms ± 1% 534ms ± 0% -1.16% (p=0.000 n=19+20) Template-12 71.1ms ± 0% 69.1ms ± 0% -2.83% (p=0.000 n=18+19) TimeParse-12 356ns ± 0% 357ns ± 0% +0.36% (p=0.000 n=17+19) TimeFormat-12 358ns ± 0% 372ns ± 1% +3.74% (p=0.000 n=15+18) [Geo mean] 62.6µs 62.5µs -0.25% Change-Id: Ied190b77c7a4d91ec7b2218c592fc31cf7acf362 Reviewed-on: https://go-review.googlesource.com/19633Reviewed-by:
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Austin Clements authored
The channel code must not allow stack splits between when it assigns a potential stack pointer to sudog.elem (or sudog.selectdone) and when it makes the sudog visible to copystack by putting it on the g.waiting list. We do get this right everywhere, but add a comment about this subtlety for future eyes. Change-Id: I941da150437167acff37b0e56983c793f40fcf79 Reviewed-on: https://go-review.googlesource.com/19632Reviewed-by:
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Austin Clements authored
Change-Id: I9c45aad1c35a99da4c3b8990649dcd962fd23b81 Reviewed-on: https://go-review.googlesource.com/19631Reviewed-by:
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Austin Clements authored
Currently the heapBitsSweepSpan comment claims that heapBitsSweepSpan sets the heap bitmap for the first two words to dead. In fact, it sets the first *four* words to scalar/dead. This is important because first two words don't actually have a dead bit, so for objects larger than two words it *must* set a dead bit in third word to reset the object to a "noscan" state. For example, we use this in heapBits.hasPointers to detect that an object larger than two words is noscan. Change-Id: Ie166a628bed5060851db083475c7377adb349d6c Reviewed-on: https://go-review.googlesource.com/19630Reviewed-by:
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Dmitriy Dudkin authored
go get -u all command updates all packages including standard commands. We need to get commands evicted from their cache to avoid loading old versions of the packages evicted from the packages cache. Fixes #14444 Change-Id: Icd581a26e1db34ca634aba595fed62b097094c2f Reviewed-on: https://go-review.googlesource.com/19899Reviewed-by:
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Brad Fitzpatrick authored
Fixes #13767 Change-Id: Ib743db7d9d72022ea911bc5ac535243489425642 Reviewed-on: https://go-review.googlesource.com/18725Reviewed-by:
Andrew Gerrand <adg@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Ian Lance Taylor authored
Change-Id: I73ae6a6837a6dcf75b3b8f431d97a18348e01a42 Reviewed-on: https://go-review.googlesource.com/19921Reviewed-by:
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Ian Lance Taylor authored
This indirectly implements a small fix for runtime/pprof: it used to look for runtime.gopanic when it should have been looking for runtime.sigpanic. Update #11432. Change-Id: I5e3f5203b2ac5463efd85adf6636e64174aacb1d Reviewed-on: https://go-review.googlesource.com/19869 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
David Chase <drchase@google.com>
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Ian Lance Taylor authored
I can't remember just how this happened to me, but I got an unfortunate crash with some set of cmd/compile debug options and source code. Change-Id: Ibef6129c50b68dad0594ac439466bfbc4b32a095 Reviewed-on: https://go-review.googlesource.com/19920 Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by:
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Emmanuel Odeke authored
Change-Id: Ie89c0945a4cc3aebfa9f7ad7f107bc7ab59ab61c Reviewed-on: https://go-review.googlesource.com/19685Reviewed-by:
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Dmitry Vyukov authored
Change-Id: I6b14b8eecf125dd74bd40f4e7fff6b49de150e42 Reviewed-on: https://go-review.googlesource.com/19897 Run-TryBot: Dmitry Vyukov <dvyukov@google.com> Reviewed-by:
Keith Randall <khr@golang.org>
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David Crawshaw authored
Simplifies some code as ptrToThis was unreliable under dynamic linking. Now the same type lookup is used regardless of execution mode. A synthetic relocation, R_USETYPE, is introduced to make sure the linker includes *T on use of T, if *T is carrying methods. Changes the heap dump format. Anything reading the format needs to look at the last bool of a type of an interface value to determine if the type should be the pointer-to type. Reduces binary size of cmd/go by 0.2%. For #6853. Change-Id: I79fcb19a97402bdb0193f3c7f6d94ddf061ee7b2 Reviewed-on: https://go-review.googlesource.com/19695Reviewed-by:
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Rick Arnold authored
Also added a test to ensure the behavior. Fixes #14150 Change-Id: Ib3ee9fdae59826fa594ce1be3c49b51d740b56eb Reviewed-on: https://go-review.googlesource.com/19915Reviewed-by:
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Mikio Hara authored
It looks like the latest DragonFly BSD kernels, at least 4.4 and above, have finished working on handling of shared IP control blocks. Let's re-enbale test cases referring to IP control blocks and see what happens. Updates #13146. Change-Id: Icbe2250e788f6a445a648541272c99b598c3013d Reviewed-on: https://go-review.googlesource.com/19406Reviewed-by:
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Mikio Hara authored
It crashes when the node under the test is shaken up. -- FAIL: TestGoLookupIPWithResolverConfig (11.73s) panic: interface conversion: error is nil, not *net.DNSError [recovered] panic: interface conversion: error is nil, not *net.DNSError goroutine 23 [running]: panic(0x2e2620, 0xc820181440) /go/src/runtime/panic.go:483 +0x3f3 testing.tRunner.func1(0xc820136d80) /go/src/testing/testing.go:467 +0x192 panic(0x2e2620, 0xc820181440) /go/src/runtime/panic.go:441 +0x4f6 net.TestGoLookupIPWithResolverConfig(0xc820136d80) /go/src/net/dnsclient_unix_test.go:358 +0x7ca testing.tRunner(0xc820136d80, 0x49ddc0) /go/src/testing/testing.go:473 +0x98 created by testing.RunTests /go/src/testing/testing.go:582 +0x892 exit status 2 Change-Id: I9631f41a3c73f3269c7e30d679c025ae64d71a98 Reviewed-on: https://go-review.googlesource.com/19870Reviewed-by:
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Mikio Hara authored
Change-Id: Ic828256efe0f50a3e11a25d85092d7531b342d2e Reviewed-on: https://go-review.googlesource.com/19873Reviewed-by:
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Robert Griesemer authored
The actual values assigned to tokens was inherited from the yacc-based grammar. With the most recent cleanups, all single-char tokens such as commas, semis, parens, etc., that get returned from lexer.next simply as their Unicode values are below utf8.RuneSelf (i.e., 7bit ASCII). Lower the initial starting value for named token constants accordingly. Change-Id: I7eb8e584dbb3bc7f9dab849d1b68a91320cffebd Reviewed-on: https://go-review.googlesource.com/19913Reviewed-by:
Matthew Dempsky <mdempsky@google.com>
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Matthew Dempsky authored
Introduced by (and missed during code review of) golang.org/cl/19847. Change-Id: I03b76f36e5da69c31730380592dfa1c32570e17f Reviewed-on: https://go-review.googlesource.com/19912 Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by:
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Burcu Dogan authored
Fixes #14497. Change-Id: Ibdd55acf9e416873c64f8751c2f65f7ccdb1d500 Reviewed-on: https://go-review.googlesource.com/19914Reviewed-by:
David Crawshaw <crawshaw@golang.org>
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Tal Shprecher authored
If the parsing of an operand completes but the parser thinks there is more to read, return an "expected end of operand" error message instead of "expected EOF." This also removes extra "asm: " prefixes in error strings since "asm: " is already set as the global log prefix. Fixes #14071 Change-Id: I7d621c1aea529a0eca3bcba032359bd25b3e1080 Reviewed-on: https://go-review.googlesource.com/19731Reviewed-by:
Rob Pike <r@golang.org>
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Matthew Dempsky authored
Change-Id: I7fe4d0cdcc284d5319c130ee3c351f23489af273 Reviewed-on: https://go-review.googlesource.com/19902Reviewed-by:
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- 24 Feb, 2016 5 commits
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Damien Neil authored
See #13247. Change-Id: I06636157028d98430eb29277c822270592907856 Reviewed-on: https://go-review.googlesource.com/19910Reviewed-by:
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Josh Bleecher Snyder authored
Passes toolstash -cmp. Change-Id: Ia497b51c74a9c760a873e1ed690e4408fd0fe596 Reviewed-on: https://go-review.googlesource.com/19844Reviewed-by:
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Keith Randall authored
Only tests do this, provide them a hook to disable freeing after flush. Change-Id: I810c6c51414a93f476a18ba07b807e16092bf8cf Reviewed-on: https://go-review.googlesource.com/19907Reviewed-by:
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Alberto Donizetti authored
name old time/op new time/op delta EncodeValidASCII-4 74.1ns ± 1% 70.1ns ± 1% -5.46% (p=0.000 n=10+10) EncodeValidJapaneseChars-4 61.3ns ± 0% 58.9ns ± 0% -3.82% (p=0.000 n=10+10) EncodeRune-4 13.1ns ± 1% 9.8ns ± 0% -25.24% (p=0.000 n=10+9) Fixes #6957 Change-Id: I9dde6d77420c34c6e2ef3e6213bb6be9b58a3074 Reviewed-on: https://go-review.googlesource.com/19891Reviewed-by:
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Burcu Dogan authored
Not every Android contains the /system/framework directory, e.g. Brillo. Test against other Android-only system files. Fixes #14489. Change-Id: I6d9ec1c4d4ceba3803798015e6917d59cf515de8 Reviewed-on: https://go-review.googlesource.com/19904Reviewed-by:
Burcu Dogan <jbd@google.com> Run-TryBot: Burcu Dogan <jbd@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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