- 16 Aug, 2017 21 commits
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Blain Smith authored
Change-Id: I901f995f8aedee47c48252745816e53192d4b7e4 Reviewed-on: https://go-review.googlesource.com/49090Reviewed-by:
Sam Whited <sam@samwhited.com> Reviewed-by:
Ian Lance Taylor <iant@golang.org> Run-TryBot: Sam Whited <sam@samwhited.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Cherry Zhang authored
This should fix NaCl build failure for CL 49530. Change-Id: Id9a54f0c81b1b5db5b5efb12a2ad6509c4ab42b3 Reviewed-on: https://go-review.googlesource.com/55770Reviewed-by:
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Wei Xiao authored
Vendor from golang.org/x/arch (commit f185940). Implements #19157 Updates #12840 Updates #20762 Updates #20897 Updates #20096 Updates #20766 Updates #20752 Updates #20096 Updates #19142 Change-Id: Idefb8ba2c355dc07f3b9e8dcf5f00173256a0f0f Reviewed-on: https://go-review.googlesource.com/49530Reviewed-by:
Cherry Zhang <cherryyz@google.com>
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Alberto Donizetti authored
There are a few cases where this can be useful. Apart from the obvious (and silly) 100*n + 200*n where we generate one IMUL instead of two, consider: 15*n + 31*n Currently, the compiler strength-reduces both imuls, generating: 0x0000 00000 MOVQ "".n+8(SP), AX 0x0005 00005 MOVQ AX, CX 0x0008 00008 SHLQ $4, AX 0x000c 00012 SUBQ CX, AX 0x000f 00015 MOVQ CX, DX 0x0012 00018 SHLQ $5, CX 0x0016 00022 SUBQ DX, CX 0x0019 00025 ADDQ CX, AX 0x001c 00028 MOVQ AX, "".~r1+16(SP) 0x0021 00033 RET But combining the imuls is both faster and shorter: 0x0000 00000 MOVQ "".n+8(SP), AX 0x0005 00005 IMULQ $46, AX 0x0009 00009 MOVQ AX, "".~r1+16(SP) 0x000e 00014 RET even without strength-reduction. Moreover, consider: 5*n + 7*(n+1) + 11*(n+2) We already have a rule that rewrites 7(n+1) into 7n+7, so the generated code (without imuls merging) looks like this: 0x0000 00000 MOVQ "".n+8(SP), AX 0x0005 00005 LEAQ (AX)(AX*4), CX 0x0009 00009 MOVQ AX, DX 0x000c 00012 NEGQ AX 0x000f 00015 LEAQ (AX)(DX*8), AX 0x0013 00019 ADDQ CX, AX 0x0016 00022 LEAQ (DX)(CX*2), CX 0x001a 00026 LEAQ 29(AX)(CX*1), AX 0x001f 00031 MOVQ AX, "".~r1+16(SP) But with imuls merging, the 5n, 7n and 11n factors get merged, and the generated code looks like this: 0x0000 00000 MOVQ "".n+8(SP), AX 0x0005 00005 IMULQ $23, AX 0x0009 00009 ADDQ $29, AX 0x000d 00013 MOVQ AX, "".~r1+16(SP) 0x0012 00018 RET Which is both faster and shorter; that's also the exact same code that clang and the intel c compiler generate for the above expression. Change-Id: Ib4d5503f05d2f2efe31a1be14e2fe6cac33730a9 Reviewed-on: https://go-review.googlesource.com/55143Reviewed-by:Keith Randall <khr@golang.org>
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Keith Randall authored
The DWARF entries for type-specific sudog entries used the channel value type instead of a pointer-to-value type for the elem field. Fixes #21094 R=go1.10 Change-Id: I3f63a5664f42b571f729931309f2c9f6f38ab031 Reviewed-on: https://go-review.googlesource.com/50170Reviewed-by:
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Ilya Tocar authored
Use 16-byte stores instead of 8-byte stores to zero small blocks. Also switch to duffzero for 65+ bytes only, because for each duffzero call we also save/restore BP, so call requires 4 instructions and replacing it with 4 sse stores doesn't cause code-bloat. Also switch duffzero to use leaq, instead of addq to avoid clobbering flags. ClearFat8-6 0.54ns ± 0% 0.54ns ± 0% ~ (all equal) ClearFat12-6 1.07ns ± 0% 1.07ns ± 0% ~ (all equal) ClearFat16-6 1.07ns ± 0% 0.69ns ± 0% -35.51% (p=0.001 n=8+9) ClearFat24-6 1.61ns ± 1% 1.07ns ± 0% -33.33% (p=0.000 n=10+10) ClearFat32-6 2.14ns ± 0% 1.07ns ± 0% -50.00% (p=0.001 n=8+9) ClearFat40-6 2.67ns ± 1% 1.61ns ± 0% -39.72% (p=0.000 n=10+8) ClearFat48-6 3.75ns ± 0% 2.68ns ± 0% -28.59% (p=0.000 n=9+9) ClearFat56-6 4.29ns ± 0% 3.22ns ± 0% -25.10% (p=0.000 n=9+9) ClearFat64-6 4.30ns ± 0% 3.22ns ± 0% -25.15% (p=0.000 n=8+8) ClearFat128-6 7.50ns ± 1% 7.51ns ± 0% ~ (p=0.767 n=10+9) ClearFat256-6 13.9ns ± 1% 13.9ns ± 1% ~ (p=0.257 n=10+10) ClearFat512-6 26.8ns ± 0% 26.8ns ± 0% ~ (p=0.467 n=8+8) ClearFat1024-6 52.5ns ± 0% 52.5ns ± 0% ~ (p=1.000 n=8+8) Also shaves ~20kb from go tool: go_old 10384994 go_new 10364514 [-20480 bytes] section differences global text (code) = -20585 bytes (-0.532047%) read-only data = -302 bytes (-0.018101%) Total difference -20887 bytes (-0.348731%) Change-Id: I15854e87544545c1af24775df895e38e16e12694 Reviewed-on: https://go-review.googlesource.com/54410 Run-TryBot: Ilya Tocar <ilya.tocar@intel.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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griesemer authored
If the source importer only encounters "soft" type checking errors it can safely return the type-checked package because it will be completely set up. This makes the source importer slightly more robust in the presence of errors. Fixes #20855. Change-Id: I5af9ccdb30eee6bca7a0fab872f6057bde521bf3 Reviewed-on: https://go-review.googlesource.com/55730Reviewed-by:
Alan Donovan <adonovan@google.com>
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Daniel Martí authored
pkgPath always received the empty string. Worse yet, it panicked if it received anything else. This has been the case ever since newName was introduced in early 2016. Change-Id: I5f164305bd30c34455ef35e776c7616f303b37e4 Reviewed-on: https://go-review.googlesource.com/54331 Run-TryBot: Daniel Martí <mvdan@mvdan.cc> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
David Crawshaw <crawshaw@golang.org>
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Michael Stapelberg authored
Change-Id: I087980d30308353c4a450636122f7e87c8310090 Reviewed-on: https://go-review.googlesource.com/56090Reviewed-by:
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Brian Kessler authored
updates #13745 Multiprecision squaring can be done in a straightforward manner with about half the multiplications of a basic multiplication due to the symmetry of the operands. This change implements basic squaring for nat types and uses it for Int multiplication when the same variable is supplied to both arguments of z.Mul(x, x). This has some overhead to allocate a temporary variable to hold the cross products, shift them to double and add them to the diagonal terms. There is a speed benefit in the intermediate range when the overhead is neglible and the asymptotic performance of karatsuba multiplication has not been reached. basicSqrThreshold = 20 karatsubaSqrThreshold = 400 Were set by running calibrate_test.go to measure timing differences between the algorithms. Benchmarks for squaring: name old time/op new time/op delta IntSqr/1-4 51.5ns ±25% 25.1ns ± 7% -51.38% (p=0.008 n=5+5) IntSqr/2-4 79.1ns ± 4% 72.4ns ± 2% -8.47% (p=0.008 n=5+5) IntSqr/3-4 102ns ± 4% 97ns ± 5% ~ (p=0.056 n=5+5) IntSqr/5-4 161ns ± 4% 163ns ± 7% ~ (p=0.952 n=5+5) IntSqr/8-4 277ns ± 5% 267ns ± 6% ~ (p=0.087 n=5+5) IntSqr/10-4 358ns ± 3% 360ns ± 4% ~ (p=0.730 n=5+5) IntSqr/20-4 1.07µs ± 3% 1.01µs ± 6% ~ (p=0.056 n=5+5) IntSqr/30-4 2.36µs ± 4% 1.72µs ± 2% -27.03% (p=0.008 n=5+5) IntSqr/50-4 5.19µs ± 3% 3.88µs ± 4% -25.37% (p=0.008 n=5+5) IntSqr/80-4 11.3µs ± 4% 8.6µs ± 3% -23.78% (p=0.008 n=5+5) IntSqr/100-4 16.2µs ± 4% 12.8µs ± 3% -21.49% (p=0.008 n=5+5) IntSqr/200-4 50.1µs ± 5% 44.7µs ± 3% -10.65% (p=0.008 n=5+5) IntSqr/300-4 105µs ±11% 95µs ± 3% -9.50% (p=0.008 n=5+5) IntSqr/500-4 231µs ± 5% 227µs ± 2% ~ (p=0.310 n=5+5) IntSqr/800-4 496µs ± 9% 459µs ± 3% -7.40% (p=0.016 n=5+5) IntSqr/1000-4 700µs ± 3% 710µs ± 5% ~ (p=0.841 n=5+5) Show a speed up of 10-25% in the range where basicSqr is optimal, improved single word squaring and no significant difference when the fallback to standard multiplication is used. Change-Id: Iae2c82ca91cf890823f91e5c83bbe9a2c534b72b Reviewed-on: https://go-review.googlesource.com/53638Reviewed-by:
Robert Griesemer <gri@golang.org> Run-TryBot: Robert Griesemer <gri@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Alberto Donizetti authored
$ gotip tool -h says: For more about each tool command, see 'go tool command -h'. But it's better to suggest go doc cmd/<command> Fixes #18313 Change-Id: I0a36d585906a5e1879e5b7927d1b6173e97cb500 Reviewed-on: https://go-review.googlesource.com/55990Reviewed-by:
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griesemer authored
Fixes #21367. Change-Id: I50704c5a613abcce57b340db8992c7bcb1cb728f Reviewed-on: https://go-review.googlesource.com/55710Reviewed-by:
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Brian Kessler authored
The current implementation of the extended Euclidean GCD algorithm calculates both cosequences x and y inside the division loop. This is unneccessary since the second Bezout coefficient can be obtained at the end of calculation via a multiplication, subtraction and a division. In case only one coefficient is needed, e.g. ModInverse this calculation can be skipped entirely. This is a standard optimization, see e.g. "Handbook of Elliptic and Hyperelliptic Curve Cryptography" Cohen et al pp 191 Available at: http://cs.ucsb.edu/~koc/ccs130h/2013/EllipticHyperelliptic-CohenFrey.pdf Updates #15833 Change-Id: I1e0d2e63567cfed97fd955048fe6373d36f22757 Reviewed-on: https://go-review.googlesource.com/50530Reviewed-by:
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Brian Kessler authored
The current implementation uses a shift and add loop to compute the product of x's exponent xe and the integer part of y (yi) for yi up to 1<<63. Since xe is an 11-bit exponent, this product can be up to 74-bits and overflow both 32 and 64-bit int. This change checks whether the accumulated exponent will fit in the 11-bit float exponent of the output and breaks out of the loop early if overflow is detected. The current handling of yi >= 1<<63 uses Exp(y * Log(x)) which incorrectly returns Nan for x<0. In addition, for y this large, Exp(y * Log(x)) can be enumerated to only overflow except when x == -1 since the boundary cases computed exactly: Pow(NextAfter(1.0, Inf(1)), 1<<63) == 2.72332... * 10^889 Pow(NextAfter(1.0, Inf(-1)), 1<<63) == 1.91624... * 10^-445 exceed the range of float64. So, the call can be replaced with a simple case statement analgous to y == Inf that correctly handles x < 0 as well. Fixes #7394 Change-Id: I6f50dc951f3693697f9669697599860604323102 Reviewed-on: https://go-review.googlesource.com/48290Reviewed-by:
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Alex Brainman authored
Change-Id: Ie5d12ba4105fec17551637d066d0dffd508f74a4 Reviewed-on: https://go-review.googlesource.com/55261 Run-TryBot: Alex Brainman <alex.brainman@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Alex Brainman authored
Change-Id: Iee9db172d28d4d372fa617907078a494e764bf12 Reviewed-on: https://go-review.googlesource.com/55260Reviewed-by:
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Alex Brainman authored
Change-Id: I4d4e8452b9b9e628f3ea8b2b727ad63ec2a1dd31 Reviewed-on: https://go-review.googlesource.com/55259Reviewed-by:
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Alex Brainman authored
Change-Id: Id3aeeaeaacf5f079fb2ddad579f2f209b7fc0e06 Reviewed-on: https://go-review.googlesource.com/55258Reviewed-by:
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Alex Brainman authored
Change-Id: Icd13b32d35cde474c9292227471f916a64af88eb Reviewed-on: https://go-review.googlesource.com/55257Reviewed-by:
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Joe Tsai authored
The Writer logic was not consistent about when an IO error would persist across multiple calls on Writer's methods. Thus, to make the error handling more consistent we always check the persistent state of the error prior to every exported method call, and return an error if set. Otherwise, it is the responsibility of every exported method to persist any fatal errors that may occur. As a simplification, we can remove the close field since that information can be represented by simply storing ErrWriteAfterClose in the err field. Change-Id: I8746ca36b3739803e0373253450db69b3bd12f38 Reviewed-on: https://go-review.googlesource.com/55590 Run-TryBot: Joe Tsai <joetsai@digital-static.net> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Joe Tsai authored
The GNU tar format defines the following type flags: TypeGNULongName = 'L' // Next file has a long name TypeGNULongLink = 'K' // Next file symlinks to a file w/ a long name Anytime a string exceeds the field dedicated to store it, the GNU format permits a fake "file" to be prepended where that file entry has a Typeflag of 'L' or 'K' and the contents of the file is a NUL-terminated string. Contrary to previous TODO comments, the GNU format supports arbitrary strings (without NUL) rather UTF-8 strings. The manual says the following: <<< The name, linkname, magic, uname, and gname are null-terminated character strings > <<< > All characters in header blocks are represented > by using 8-bit characters in the local variant of ASCII. From this description, we gather the following: * We must forbid NULs in any GNU strings * Any 8-bit value (other than NUL) is permitted Since the modern world has moved to UTF-8, it is really difficult to determine what a "local variant of ASCII" means. For this reason, we treat strings as just an arbitrary binary string (without NUL) and leave it to the user to determine the encoding of this string. (Practically, it seems that UTF-8 is the typical encoding used in GNU archives seen in the wild). The implementation of GNU tar seems to confirm this interpretation of the manual where it permits any arbitrary binary string to exist within these fields so long as they do not contain the NUL character. $ touch `echo -e "not\x80\x81\x82\x83utf8"` $ gnutar -H gnu --tar -cvf gnu-not-utf8.tar $(echo -e "not\x80\x81\x82\x83utf8") The fact that we permit arbitrary binary in GNU strings goes hand-in-hand with the fact that GNU also permits a "base-256" encoding of numeric fields, which is effectively two-complement binary. Change-Id: Ic037ec6bed306d07d1312f0058594bd9b64d9880 Reviewed-on: https://go-review.googlesource.com/55573Reviewed-by:
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- 15 Aug, 2017 19 commits
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Naoki Kanatani authored
In the existing implementation, if pattern is an empty string, program calls a panic with the message which is a concatenation of "http: invalid pattern " and pattern. In this case, pattern is an empty, so the commit removes this concatenation and the trailing space. Fixes: #21102 Change-Id: I49f58b52d835311a6ac642de871eb15646e48a54 Reviewed-on: https://go-review.googlesource.com/50350Reviewed-by:
Dmitri Shuralyov <shurcool@gmail.com> Reviewed-by:
Tom Bergan <tombergan@google.com> Run-TryBot: Tom Bergan <tombergan@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Ian Lance Taylor authored
The code was adding race.Errors to t.raceErrors before checking Failed, but Failed was using t.raceErrors+race.Errors. We don't want to change Failed, since that would affect tests themselves, so modify the harness to not unnecessarily change t.raceErrors. Updates #19851 Fixes #21338 Change-Id: I7bfdf281f90e045146c92444f1370d55c45221d4 Reviewed-on: https://go-review.googlesource.com/54050Reviewed-by:
Joe Tsai <thebrokentoaster@gmail.com> Run-TryBot: Joe Tsai <thebrokentoaster@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Josh Bleecher Snyder authored
This reduces the code footprint of code like: println("foo=", foo, "bar=", bar) which is fairly common in the runtime. Prior to this change, this makes function calls to print each of: "foo=", " ", foo, " ", "bar=", " ", bar, "\n" After this change, this prints: "foo= ", foo, " bar= ", bar, "\n" This shrinks the hello world binary by 0.4%. More importantly, this improves the instruction density of important runtime routines. Change-Id: I8971bdf5382fbaaf4a82bad4442f9da07c28d395 Reviewed-on: https://go-review.googlesource.com/55098 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:Matthew Dempsky <mdempsky@google.com>
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Josh Bleecher Snyder authored
Rather than emitting spaces and newlines for println as we walk the expression, construct it all up front. This enables further optimizations. This requires using printstring instead of print in the implementation of printsp and printnl, on pain of infinite recursion. That's ok; it's more efficient anyway, and just as simple. While we're here, do it for other print routines as well. Change-Id: I61d7df143810e00710c4d4d948d904007a7fd190 Reviewed-on: https://go-review.googlesource.com/55097 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
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Josh Bleecher Snyder authored
Passes toolstash-check. Change-Id: I6386a37a35221de8d3944253beee668927810f17 Reviewed-on: https://go-review.googlesource.com/55096 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> Reviewed-by:
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Josh Bleecher Snyder authored
Superficial simplifications: reduce variable scope, eliminate pointless temporaries, use a switch statement. Passes toolstash-check. Change-Id: I6450493a0583a6ce8ec0461b66954cf1445a754f Reviewed-on: https://go-review.googlesource.com/55095 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> Reviewed-by:
Daniel Martí <mvdan@mvdan.cc> Reviewed-by:
Marvin Stenger <marvin.stenger94@gmail.com> Reviewed-by:
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Hana Kim authored
This effectively reverts https://golang.org/cl/53770 and adds a guide on what not to add in this file. Update #21458 Change-Id: I7c740d492b70628b5d9f9e1622014995a3f6f8ec Reviewed-on: https://go-review.googlesource.com/55871Reviewed-by:
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Daniel Morsing authored
Writing to selectdone on the stack of another goroutine meant a pretty subtle dance between the select code and the stack copying code. Instead move the selectdone variable into the g struct. Change-Id: Id246aaf18077c625adef7ca2d62794afef1bdd1b Reviewed-on: https://go-review.googlesource.com/53390Reviewed-by:
Austin Clements <austin@google.com> Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
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Keith Randall authored
I noticed that we don't set an itab's function pointers at compile time. Instead, we currently do it at executable startup. Set the function pointers at compile time instead. This shortens startup time. It has no effect on normal binary size. Object files will have more relocations, but that isn't a big deal. For PIE there are additional pointers that will need to be adjusted at load time. There are already other pointers in an itab that need to be adjusted, so the cache line will already be paged in. There might be some binary size overhead to mark these pointers. The "go test -c -buildmode=pie net/http" binary is 0.18% bigger. Update #20505 Change-Id: I267c82489915b509ff66e512fc7319b2dd79b8f7 Reviewed-on: https://go-review.googlesource.com/44341 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Martin Möhrmann <moehrmann@google.com>
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Austin Clements authored
Currently, GC captures the start-the-world time stamp after startTheWorldWithSema returns. This is problematic for two reasons: 1. It's possible to get preempted between startTheWorldWithSema starting the world and calling nanotime. 2. startTheWorldWithSema does several clean-up tasks after the world is up and running that on rare occasions can take upwards of 10ms. Since the runtime uses the start-the-world time stamp to compute the STW duration, both of these can significantly inflate the reported STW duration. Fix this by having startTheWorldWithSema itself call nanotime once the world is started. Change-Id: I114630234fb73c9dabae50a2ef1884661f2459db Reviewed-on: https://go-review.googlesource.com/55410 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by:
Rick Hudson <rlh@golang.org>
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Hiroshi Ioka authored
Fixes #20488 Change-Id: Iae963b612aea3d9e814b08f655e2eb019ece256e Reviewed-on: https://go-review.googlesource.com/44110Reviewed-by:
Adam Langley <agl@golang.org> Run-TryBot: Adam Langley <agl@golang.org>
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Filippo Valsorda authored
Detected by BoGo test FragmentAcrossChangeCipherSpec-Server-Packed. Change-Id: I9a76697b9cdeb010642766041971de5c7e533481 Reviewed-on: https://go-review.googlesource.com/48811Reviewed-by:
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Martins Sipenko authored
Change-Id: I77d9c77875519d77bac49cc8870c2e0c4563fe55 Reviewed-on: https://go-review.googlesource.com/44313Reviewed-by:
Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by:
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Filippo Valsorda authored
name time/op HandshakeServer/RSA-4 1.10ms ± 0% HandshakeServer/ECDHE-P256-RSA-4 1.23ms ± 1% HandshakeServer/ECDHE-P256-ECDSA-P256-4 178µs ± 1% HandshakeServer/ECDHE-X25519-ECDSA-P256-4 180µs ± 2% HandshakeServer/ECDHE-P521-ECDSA-P521-4 19.8ms ± 1% Change-Id: I6b2c79392995d259cfdfc5199be44cc7cc40e155 Reviewed-on: https://go-review.googlesource.com/44730Reviewed-by:
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Andreas Auernhammer authored
The processClientKeyExchange and processServerKeyExchange functions unmarshal an encoded EC point and explicitly check whether the point is on the curve. The explicit check can be omitted because elliptic.Unmarshal fails if the point is not on the curve and the returned error would always be the same. Fixes #20496 Change-Id: I5231a655eace79acee2737dd036a0c255ed42dbb Reviewed-on: https://go-review.googlesource.com/44311Reviewed-by:
Avelino <t@avelino.xxx> Run-TryBot: Adam Langley <agl@golang.org>
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James Hartig authored
asn1.NullRawValue was used according to RFC 3279 2.2.1. Without this tag, the output didn't match openssl. Fixes #19972 Change-Id: Ia52ddb810888837f913dbd65c4e1328f6c8084bb Reviewed-on: https://go-review.googlesource.com/40730Reviewed-by:
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Austin Clements authored
Change-Id: I1b42fca2107b06e6fc95728f7bf3d08d005c4cb4 Reviewed-on: https://go-review.googlesource.com/55810Reviewed-by:
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Tobias Klauser authored
golang.org/cl/55130 added utimensat for Solaris but didn't use it in UtimesNano (despite indicating otherwise in the commit message). Fix this by also using utimensat for UtimesNano on Solaris. Because all versions of Solaris suppported by Go support utimensat, there is no need for the fallback logic and utimensat can be called unconditionally. This issue was pointed out by Shawn Walker-Salas. Updates #16480 Change-Id: I114338113a6da3cfcb8bca950674bdc8f5a7a9e5 Reviewed-on: https://go-review.googlesource.com/55141 Run-TryBot: Ian Lance Taylor <iant@golang.org> Reviewed-by:
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Hana (Hyang-Ah) Kim authored
Some IDEs (e.g. intellij IDE based ones) create the .idea folder to store project specific settings. This is irrelevant to Go project that does not assume any specific IDEs, but interferes with git. Change-Id: I0c93d9a3f7edff095fbe0c7a53b06c92b391c970 Reviewed-on: https://go-review.googlesource.com/53770Reviewed-by:
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