- 21 Apr, 2015 3 commits
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Mikio Hara authored
This change fixes inconsistent error values on File{Conn,Listener,PacketConn} and File method of Conn, Listener. Updates #4856. Change-Id: I3197b9277bef0e034427e3a44fa77523acaa2520 Reviewed-on: https://go-review.googlesource.com/9101Reviewed-by:Ian Lance Taylor <iant@golang.org>
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Michael Hudson-Doyle authored
They don't really make any sense on this side of the compiler/linker divide. Some of the code touching these fields was the support for R_TLS when thechar=='6' which turns out to be dead and so I just removed all of that. Change-Id: I4e265613c4e7fcc30a965fffb7fd5f45017f06f3 Reviewed-on: https://go-review.googlesource.com/9107 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Mikio Hara authored
Also moves a few server test helpers into mockserver_test.go. Change-Id: I5a95c9bc6f0c4683751bcca77e26a8586a377466 Reviewed-on: https://go-review.googlesource.com/9106Reviewed-by:
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- 20 Apr, 2015 16 commits
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Michael Hudson-Doyle authored
Change-Id: I1ea4175466c9113c1f41b012ba8266ee2b06e3a3 Reviewed-on: https://go-review.googlesource.com/8522Reviewed-by:
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Michael Hudson-Doyle authored
Thanks to Russ for the hints. Change-Id: Ie35a71d432b9d68bd30c7a364b4dce1bd3db806e Reviewed-on: https://go-review.googlesource.com/9102Reviewed-by:
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Brad Fitzpatrick authored
Change-Id: I1cf94377c613fb51ae77f4fe1e3439268b1606a9 Reviewed-on: https://go-review.googlesource.com/9161Reviewed-by:
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Rick Hudson authored
Optimized heapBitsForObject by special casing objects whose size is a power of two. When a span holding such objects is initialized I added a mask that when &ed with an interior pointer results in the base of the pointer. For the garbage benchmark this resulted in CPU_CLK_UNHALTED in heapBitsForObject going from 7.7% down to 5.9% of the total, INST_RETIRED went from 12.2 -> 8.7. Here are the benchmarks that were at lease plus or minus 1%. benchmark old ns/op new ns/op delta BenchmarkFmtFprintfString 249 221 -11.24% BenchmarkFmtFprintfInt 247 223 -9.72% BenchmarkFmtFprintfEmpty 76.5 69.6 -9.02% BenchmarkBinaryTree17 4106631412 3744550160 -8.82% BenchmarkFmtFprintfFloat 424 399 -5.90% BenchmarkGoParse 4484421 4242115 -5.40% BenchmarkGobEncode 8803668 8449107 -4.03% BenchmarkFmtManyArgs 1494 1436 -3.88% BenchmarkGobDecode 10431051 10032606 -3.82% BenchmarkFannkuch11 2591306713 2517400464 -2.85% BenchmarkTimeParse 361 371 +2.77% BenchmarkJSONDecode 70620492 68830357 -2.53% BenchmarkRegexpMatchMedium_1K 54693 53343 -2.47% BenchmarkTemplate 90008879 91929940 +2.13% BenchmarkTimeFormat 380 387 +1.84% BenchmarkRegexpMatchEasy1_32 111 113 +1.80% BenchmarkJSONEncode 21359159 21007583 -1.65% BenchmarkRegexpMatchEasy1_1K 603 613 +1.66% BenchmarkRegexpMatchEasy0_32 127 129 +1.57% BenchmarkFmtFprintfIntInt 399 393 -1.50% BenchmarkRegexpMatchEasy0_1K 373 378 +1.34% Change-Id: I78e297161026f8b5cc7507c965fd3e486f81ed29 Reviewed-on: https://go-review.googlesource.com/8980Reviewed-by:
Austin Clements <austin@google.com>
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Matthew Dempsky authored
http://golang.org/cl/7623 refactored how line history works and introduced a new TrimPathPrefix field to replace the existing Trimpath field, but never removed the latter or updated its users. Fixes #10503. Change-Id: Ief90a55b6cef2e8062b59856a4c7dcc0df01d3f2 Reviewed-on: https://go-review.googlesource.com/9113Reviewed-by:
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Brad Fitzpatrick authored
Fixes #9496 Fixes #9946 Fixes #10474 Fixes #10405 Change-Id: I4e65f1706e46499811d9ebf4ad6d83a5dfb2ddaa Reviewed-on: https://go-review.googlesource.com/8550Reviewed-by:
Daniel Morsing <daniel.morsing@gmail.com> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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Russ Cox authored
This is primarily about making the code clearer, but as part of the cleanup componentgen is now much more consistent about what it does and does not attempt. The new limit is to 8 move instructions. The old limit was either 3 or 4 small things but in the details it was quite inconsistent: ints, interfaces, strings, and slices all counted as small; it handled a struct containing two ints, but not a struct containing a struct containing two ints; it handled slices and interfaces and a struct containing a slice but not a struct containing an interface; and so on. The new code runs at about the same speed as the old code if limited to 4 moves, but that's much more restrictive when the pieces are strings or interfaces. With the limit raised to 8 moves, this CL is sometimes a significant improvement: benchmark old ns/op new ns/op delta BenchmarkBinaryTree17 4361174290 4362870005 +0.04% BenchmarkFannkuch11 3008201483 2974408533 -1.12% BenchmarkFmtFprintfEmpty 79.0 79.5 +0.63% BenchmarkFmtFprintfString 281 261 -7.12% BenchmarkFmtFprintfInt 264 262 -0.76% BenchmarkFmtFprintfIntInt 447 443 -0.89% BenchmarkFmtFprintfPrefixedInt 354 361 +1.98% BenchmarkFmtFprintfFloat 500 452 -9.60% BenchmarkFmtManyArgs 1688 1693 +0.30% BenchmarkGobDecode 11718456 11741179 +0.19% BenchmarkGobEncode 10144620 10161627 +0.17% BenchmarkGzip 437631642 435271877 -0.54% BenchmarkGunzip 109468858 110173606 +0.64% BenchmarkHTTPClientServer 76248 75362 -1.16% BenchmarkJSONEncode 24160474 23753091 -1.69% BenchmarkJSONDecode 84470041 82902026 -1.86% BenchmarkMandelbrot200 4676857 4687040 +0.22% BenchmarkGoParse 4954602 4923965 -0.62% BenchmarkRegexpMatchEasy0_32 151 151 +0.00% BenchmarkRegexpMatchEasy0_1K 450 452 +0.44% BenchmarkRegexpMatchEasy1_32 131 130 -0.76% BenchmarkRegexpMatchEasy1_1K 713 695 -2.52% BenchmarkRegexpMatchMedium_32 227 218 -3.96% BenchmarkRegexpMatchMedium_1K 63911 62966 -1.48% BenchmarkRegexpMatchHard_32 3163 3026 -4.33% BenchmarkRegexpMatchHard_1K 93985 90266 -3.96% BenchmarkRevcomp 650697093 649211600 -0.23% BenchmarkTemplate 107049170 106804076 -0.23% BenchmarkTimeParse 448 452 +0.89% BenchmarkTimeFormat 468 460 -1.71% Change-Id: I08563133883e88bb9db9e9e4dee438a5af2787da Reviewed-on: https://go-review.googlesource.com/9004Reviewed-by:
Josh Bleecher Snyder <josharian@gmail.com>
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Russ Cox authored
This CL revises CL 7504 to use explicitly uintptr types for the struct fields that are going to be updated sometimes without write barriers. The result is that the fields are now updated *always* without write barriers. This approach has two important properties: 1) Now the GC never looks at the field, so if the missing reference could cause a problem, it will do so all the time, not just when the write barrier is missed at just the right moment. 2) Now a write barrier never happens for the field, avoiding the (correct) detection of inconsistent write barriers when GODEBUG=wbshadow=1. Change-Id: Iebd3962c727c0046495cc08914a8dc0808460e0e Reviewed-on: https://go-review.googlesource.com/9019Reviewed-by:
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Matthew Dempsky authored
The majority of this CL was prepared via scripted invocations of `gofmt -w -r "$SYM -> obj.$SYM" cmd/internal/ld/*.go` and `gofmt -w -r "ld.$SYM -> obj.$SYM" cmd/?l/*.go`. Because of issue #7417, that was followed by repeatedly running an AWK script to identify lines that differed other than whitespace changes or "ld." or "obj." prefixes and manually restoring comments. Finally, the redundant constants from cmd/internal/ld/link.go were removed, and "goimports -w" was used to cleanup import lines. Passes rsc.io/toolstash/buildall, even when modified to also build cmd. Fixes #10055. Change-Id: Icd5dbe819a3b6520ce883748e60017dc8e9a2e85 Reviewed-on: https://go-review.googlesource.com/9112Reviewed-by:
Michael Hudson-Doyle <michael.hudson@canonical.com> Reviewed-by:
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Russ Cox authored
The go command prints paths in errors relative to its current directory. Since all.bash and run.bash are run in $GOROOT/src, prefer to run the go command, so that the relative paths are correct. Before this CL, running all.bash in $GOROOT/src: ##### Testing race detector # net/http src/net/http/transport.go:1257: cannot take the address of <node EFACE> This is wrong (or at least less useful) because there is no $GOROOT/src/src/net/http directory. Change-Id: I0c0d52c22830d79b3715f51a6329a3d33de52a72 Reviewed-on: https://go-review.googlesource.com/9157Reviewed-by:
Rob Pike <r@golang.org>
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Ian Lance Taylor authored
The callee-saved registers must be saved because for the c-shared case this code is invoked from C code in the system library, and that code expects the registers to be saved. The tests were passing because in the normal case the code calls a cgo function that naturally saves callee-saved registers anyhow. However, it fails when the code takes the non-cgo path. Change-Id: I9c1f5e884f5a72db9614478049b1863641c8b2b9 Reviewed-on: https://go-review.googlesource.com/9114Reviewed-by:
David Crawshaw <crawshaw@golang.org>
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Ian Lance Taylor authored
Change-Id: I4ee6dac32bd3759aabdfdc92b235282785fbcca9 Reviewed-on: https://go-review.googlesource.com/9083Reviewed-by:
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Brad Fitzpatrick authored
Change-Id: I5964fc55157dc1df7be400dfa0df591d6163e25e Reviewed-on: https://go-review.googlesource.com/9084Reviewed-by:
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David Crawshaw authored
Turns out all the necessary pieces have already been submitted. Change-Id: I19c8d614cd756821ce400ca7a338029002780b18 Reviewed-on: https://go-review.googlesource.com/9076Reviewed-by:
Hyang-Ah Hana Kim <hyangah@gmail.com>
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David Crawshaw authored
Change-Id: I0d3f9841500e0a41f1c427244869bf3736a31e18 Reviewed-on: https://go-review.googlesource.com/9075Reviewed-by:
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Hyang-Ah Hana Kim authored
Change-Id: Ia2c0c617df523482ba1a25b7492267eb80f0819a Reviewed-on: https://go-review.googlesource.com/9033 Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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- 19 Apr, 2015 2 commits
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Michael Hudson-Doyle authored
In https://golang.org/cl/7797 I attempted to use myimportpath to set the value of the go.importpath.$foo. symbol for the module being compiled, but I messed it up and only set the name (which the linker rewrites anyway). This lead to the importpath for the module being compiled being "". This was hard to notice, because all modules that import another define the importpath for their imported modules correctly -- but main is not imported, and this meant that the reflect module saw all fields of all types defined in the main module as exported. The fix is to do what I meant to do the first time, add a test and change the go tool to compile main packages with -p main and not -p command-line-arguments. Fixes #10332 Change-Id: I5fc6e9b1dc2b26f058641e382f9a56a526eca291 Reviewed-on: https://go-review.googlesource.com/8481Reviewed-by:
Russ Cox <rsc@golang.org>
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Mikio Hara authored
Change-Id: Ic965b48bdc0e0ffba9bed5ff6b3d28ff742f8b2d Reviewed-on: https://go-review.googlesource.com/9100Reviewed-by:
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- 18 Apr, 2015 9 commits
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Matthew Dempsky authored
This avoids a race condition with go1.go wanting to examine files in the current directory with filepath.Walk(".", walkFn). Fixes #10497. Change-Id: I2159f40a08d1a768195dbb7ea3c27e38cf9740bb Reviewed-on: https://go-review.googlesource.com/9110Reviewed-by:Brad Fitzpatrick <bradfitz@golang.org>
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Mikio Hara authored
This change fixes inconsistent error values on Accept{,TCP,Unix}. Updates #4856. Change-Id: Ie3bb534c19a724cacb3ea3f3656e46c810b2123f Reviewed-on: https://go-review.googlesource.com/8996Reviewed-by: -
Mikio Hara authored
This change fixes inconsistent error values on Close, CloseRead and CloseWrite. Updates #4856. Change-Id: I3c4d46ccd7d6e1a2f52d8e75b512f62c533a368d Reviewed-on: https://go-review.googlesource.com/8994Reviewed-by:
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Mikio Hara authored
This change fixes inconsistent error values on Write, WriteTo{,UDP,IP,Unix} and WriteMsg{UDP,IP,Unix}. Updates #4856. Change-Id: I4208ab6a0650455ad7d70a80a2d6169351d6055f Reviewed-on: https://go-review.googlesource.com/8993Reviewed-by: -
Mikio Hara authored
This change fixes inconsistent error values on Read, ReadFrom{,UDP,IP,Unix} and ReadMsg{UDP,IP,Unix}. Updates #4856. Change-Id: I7de5663094e09be2d78cdb18ce6f1e7ec260888d Reviewed-on: https://go-review.googlesource.com/8992Reviewed-by: -
Josh Bleecher Snyder authored
Change-Id: Ied0eab872950793b34dd2268055b29c702b07e99 Reviewed-on: https://go-review.googlesource.com/9081Reviewed-by:
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Mikio Hara authored
Change-Id: I7c6c91a0551aacb49e1beb4a39215b93c8c7fcfa Reviewed-on: https://go-review.googlesource.com/8997Reviewed-by:
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Matthew Dempsky authored
Fixes #10453. Change-Id: I77470279865d4c954df615d6594c69edf68c28ca Reviewed-on: https://go-review.googlesource.com/9090Reviewed-by:
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Brad Fitzpatrick authored
Clear out gg.go files, and move things into consistent places between the cmd/?g directories. Change-Id: I81e04180613b806e0bfbb88519e66111ce9f74a3 Reviewed-on: https://go-review.googlesource.com/9080Reviewed-by:
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- 17 Apr, 2015 10 commits
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Mikio Hara authored
This change adds a type addrinfoErrno to represent getaddrinfo, getnameinfo-specific errors, and uses it in cgo-based lookup functions. Also retags cgo files for clarification and does minor cleanup. Change-Id: I6db7130ad7bf35bbd4e8839a97759e1364c43828 Reviewed-on: https://go-review.googlesource.com/9020Reviewed-by:
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David Crawshaw authored
I have left the Diag calls in place where I believe Ctxt.Cursym != nil which means this CL is not the improvement I had hoped for. However it is now safe to call Exitf whereever you are in the linker, which makes it easier to reason about some code. Change-Id: I8261e761ca9719f7d216e2747314adfe464e3337 Reviewed-on: https://go-review.googlesource.com/8668Reviewed-by:
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David Crawshaw authored
Change-Id: I4278abca9d2a8f25149fa8935a93d32e7d04a43a Reviewed-on: https://go-review.googlesource.com/9050Reviewed-by:
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Matthew Dempsky authored
Change-Id: I4e59b5b1702e08d7c6191d0a70fb0a555f3340c8 Reviewed-on: https://go-review.googlesource.com/9061 Run-TryBot: Matthew Dempsky <mdempsky@google.com> Reviewed-by:
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Rob Pike authored
Change-Id: I9968ce162996e71843eeaf9764d216c401427fed Reviewed-on: https://go-review.googlesource.com/9040Reviewed-by:
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Rob Pike authored
Fix some out-of-date remarks. Fixes #10489. Change-Id: I8f0cce2588828052a5d013e7bac6bcfeb220579d Reviewed-on: https://go-review.googlesource.com/9008Reviewed-by:
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Rob Pike authored
Also use os.Expand for variable substitution so ${x}y works. Fixes #9960. Change-Id: Ic8239b2e737d1f41910dde8ee9524ac48907cb03 Reviewed-on: https://go-review.googlesource.com/9007Reviewed-by: -
Josh Bleecher Snyder authored
Use SETcc instructions instead of Jcc to generate boolean values. This generates shorter, jump-free code, which may in turn enable other peephole optimizations. For example, given func f(i, j int) bool { return i == j } Before "".f t=1 size=32 value=0 args=0x18 locals=0x0 0x0000 00000 (x.go:3) TEXT "".f(SB), $0-24 0x0000 00000 (x.go:3) FUNCDATA $0, gclocals·b4c25e9b09fd0cf9bb429dcefe91c353(SB) 0x0000 00000 (x.go:3) FUNCDATA $1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB) 0x0000 00000 (x.go:4) MOVQ "".i+8(FP), BX 0x0005 00005 (x.go:4) MOVQ "".j+16(FP), BP 0x000a 00010 (x.go:4) CMPQ BX, BP 0x000d 00013 (x.go:4) JEQ 21 0x000f 00015 (x.go:4) MOVB $0, "".~r2+24(FP) 0x0014 00020 (x.go:4) RET 0x0015 00021 (x.go:4) MOVB $1, "".~r2+24(FP) 0x001a 00026 (x.go:4) JMP 20 After "".f t=1 size=32 value=0 args=0x18 locals=0x0 0x0000 00000 (x.go:3) TEXT "".f(SB), $0-24 0x0000 00000 (x.go:3) FUNCDATA $0, gclocals·b4c25e9b09fd0cf9bb429dcefe91c353(SB) 0x0000 00000 (x.go:3) FUNCDATA $1, gclocals·33cdeccccebe80329f1fdbee7f5874cb(SB) 0x0000 00000 (x.go:4) MOVQ "".i+8(FP), BX 0x0005 00005 (x.go:4) MOVQ "".j+16(FP), BP 0x000a 00010 (x.go:4) CMPQ BX, BP 0x000d 00013 (x.go:4) SETEQ "".~r2+24(FP) 0x0012 00018 (x.go:4) RET regexp benchmarks, best of 12 runs: benchmark old ns/op new ns/op delta BenchmarkNotOnePassShortB 782 733 -6.27% BenchmarkLiteral 180 171 -5.00% BenchmarkNotLiteral 2855 2721 -4.69% BenchmarkMatchHard_32 2672 2557 -4.30% BenchmarkMatchHard_1K 80182 76732 -4.30% BenchmarkMatchEasy1_32M 76440180 73304748 -4.10% BenchmarkMatchEasy1_32K 68798 66350 -3.56% BenchmarkAnchoredLongMatch 482 465 -3.53% BenchmarkMatchEasy1_1M 2373042 2292692 -3.39% BenchmarkReplaceAll 2776 2690 -3.10% BenchmarkNotOnePassShortA 1397 1360 -2.65% BenchmarkMatchClass_InRange 3842 3742 -2.60% BenchmarkMatchEasy0_32 125 122 -2.40% BenchmarkMatchEasy0_32K 11414 11164 -2.19% BenchmarkMatchEasy0_1K 668 654 -2.10% BenchmarkAnchoredShortMatch 260 255 -1.92% BenchmarkAnchoredLiteralShortNonMatch 164 161 -1.83% BenchmarkOnePassShortB 623 612 -1.77% BenchmarkOnePassShortA 801 788 -1.62% BenchmarkMatchClass 4094 4033 -1.49% BenchmarkMatchEasy0_32M 14078800 13890704 -1.34% BenchmarkMatchHard_32K 4095844 4045820 -1.22% BenchmarkMatchEasy1_1K 1663 1643 -1.20% BenchmarkMatchHard_1M 131261708 129708215 -1.18% BenchmarkMatchHard_32M 4210112412 4169292003 -0.97% BenchmarkMatchMedium_32K 2460752 2438611 -0.90% BenchmarkMatchEasy0_1M 422914 419672 -0.77% BenchmarkMatchMedium_1M 78581121 78040160 -0.69% BenchmarkMatchMedium_32M 2515287278 2498464906 -0.67% BenchmarkMatchMedium_32 1754 1746 -0.46% BenchmarkMatchMedium_1K 52105 52106 +0.00% BenchmarkAnchoredLiteralLongNonMatch 185 185 +0.00% BenchmarkMatchEasy1_32 107 107 +0.00% BenchmarkOnePassLongNotPrefix 505 505 +0.00% BenchmarkOnePassLongPrefix 147 147 +0.00% The godoc binary is ~0.12% smaller after this CL. Updates #5729. toolstash -cmp passes for all architectures other than amd64 and amd64p32. Other architectures can be done in follow-up CLs. Change-Id: I0e167e259274b722958567fc0af83a17ca002da7 Reviewed-on: https://go-review.googlesource.com/2284Reviewed-by: -
Ian Lance Taylor authored
Change-Id: I87147ca6bb53e3121cc4245449c519509f107638 Reviewed-on: https://go-review.googlesource.com/9009 Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by:
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Russ Cox authored
$ sam -d cmd/internal/gc/*.{go,y} cmd/?g/*.go X ,s/, (gc\.)?[BFHNST]conv\(([^()]+), 0\)/, \2/g X/'/w q $ Change-Id: Ic28a4807d237b8ae53ceca1e4e7fdb43580ab560 Reviewed-on: https://go-review.googlesource.com/9032Reviewed-by:
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