Commit graph

36764 commits

Author SHA1 Message Date
Richard Musiol 88dc4aee7c cmd/compile: fix OffPtr with negative offset on wasm
The wasm archtecture was missing a rule to handle OffPtr with a
negative offset. This commit makes it so OffPtr always gets lowered
to I64AddConst.

Fixes #25741

Change-Id: I1d48e2954e3ff31deb8cba9a9bf0cab7c4bab71a
Reviewed-on: https://go-review.googlesource.com/116595
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
2018-06-06 14:40:25 +00:00
Ian Lance Taylor 6decd3d984 reflect: add StructOf test case that gccgo used to fail
Updates #25284

Change-Id: I8ca382dd85b428ad6899d9277cf7f3ce34e35e9a
Reviewed-on: https://go-review.googlesource.com/116416
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2018-06-06 14:08:42 +00:00
Brad Fitzpatrick 2ce295e954 net/http: remove an allocation in ServeMux
Also, add a benchmark variant ("SkipServe") that only benchmarks the
ServeMux handler selection path.

name                  old time/op    new time/op    delta
ServeMux_SkipServe-4    74.2µs ± 2%    60.6µs ± 1%   -18.31%   (p=0.000 n=10+9)

name                  old alloc/op   new alloc/op   delta
ServeMux_SkipServe-4    2.62kB ± 0%   0.00kB ±NaN%  -100.00%  (p=0.000 n=10+10)

name                  old allocs/op  new allocs/op  delta
ServeMux_SkipServe-4       180 ± 0%        0 ±NaN%  -100.00%  (p=0.000 n=10+10)

Updates #25383

Change-Id: Icfbb3b977e309093d032e922d1b4f254df6f5955
Reviewed-on: https://go-review.googlesource.com/116378
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com>
2018-06-06 01:47:31 +00:00
Dennis Kuhnert ebb8a1f8e6 cmd/go: output coverage report even if there are no test files
When using test -cover or -coverprofile the output for "no test files"
is the same format as for "no tests to run".

Fixes #24570

Change-Id: If05609411676d42d94c1feac4bc839974fae2cc1
Reviewed-on: https://go-review.googlesource.com/115095
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-06 01:10:20 +00:00
Robert Griesemer d159d6108c cmd/compile: terminate compilation if type-checking fails
There is no benefit in continuing compilation if there
are type-checking errors. This will increase robustness
of the compiler in the presence of errors.

Fixes #22909.

Change-Id: I1c70c667e5927646ba3d0f370e33705165620f12
Reviewed-on: https://go-review.googlesource.com/116335
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-06 00:15:51 +00:00
Filippo Valsorda b0951aff8f doc: document Go 1.10.3
Change-Id: Ifc774bb9267baa773e91c617204329d3e04bd4b7
Reviewed-on: https://go-review.googlesource.com/116363
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-06-06 00:03:55 +00:00
Filippo Valsorda bbf4a3024b doc: document Go 1.9.7
Change-Id: I10dededb41162a99dbc42792a9d314c6dabddcca
Reviewed-on: https://go-review.googlesource.com/116362
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
2018-06-06 00:03:32 +00:00
Robert Griesemer 409a943f69 cmd/compile: avoid nil pointer deref in debugging output
Found while tracking down another issue.

Change-Id: If06eee72ce3e3f45dc00b3b68670e1e4d99c87a7
Reviewed-on: https://go-review.googlesource.com/116455
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-05 23:43:08 +00:00
Brad Fitzpatrick db49f76dc5 net/http: document Transport.Dial concurrency
Fixes #25019

Change-Id: I715e3bb560b2a0301240cecb09a5126ab04a666e
Reviewed-on: https://go-review.googlesource.com/116375
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-05 20:31:21 +00:00
Robert Griesemer 9be4f312bf cmd/compile: revert internal parameter rename (from ".anonX" to "") before export
In the old binary export format, parameter names for parameter lists
which contained only types where never written, so this problem didn't
come up.

Fixes #25101.

Change-Id: Ia8b817f7f467570b05f88d584e86b6ef4acdccc6
Reviewed-on: https://go-review.googlesource.com/116376
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
2018-06-05 20:22:07 +00:00
Ian Lance Taylor e7ee3b91c4 reflect: check that types match without calling TypeOf
gccgo fails this test before CL 115577.

Updates #25284

Change-Id: Id4550b7b3e268f3c294420ed31c57ad3f1002b5e
Reviewed-on: https://go-review.googlesource.com/115635
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Than McIntosh <thanm@google.com>
2018-06-05 20:00:37 +00:00
isharipo 2c01b7d632 cmd/link: fix duplicated "undefined reloc" errors
For given program with 2 undefined relocations (main and undefined):

	package main
	func undefined()
	func defined() int {
		undefined()
		undefined()
		return 0
	}
	var x = defined()

"go tool link" produces these errors:

	main.defined: relocation target main.undefined not defined
	main.defined: relocation target main.undefined not defined
	runtime.main_main·f: relocation target main.main not defined
	main.defined: undefined: "main.undefined"
	main.defined: undefined: "main.undefined"
	runtime.main_main·f: undefined: "main.main"

After this CL is applied:

	main.defined: relocation target main.undefined not defined
	runtime.main_main·f: function main is undeclared in the main package

Fixes #10978
Improved error message for main proposed in #24809.

Change-Id: I4ba8547b1e143bbebeb4d6e29ea05d932124f037
Reviewed-on: https://go-review.googlesource.com/113955
Run-TryBot: Iskander Sharipov <iskander.sharipov@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-05 16:49:07 +00:00
Eugene Kalinin 0e934dd90e os: check setStickyBit error in mkdir
If an error occurs, delete the newly created directory.

Change-Id: I97e960d24af32f027fb23d5ce3f61959e73f6fb0
Reviewed-on: https://go-review.googlesource.com/115715
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-05 14:53:18 +00:00
Bill Zissimopoulos bb0fae603b runtime: handle windows callback on non-go thread
Adds an extra M in mstartm0 and accounts for it in checkdead. This allows Windows callbacks created with syscall.NewCallback and syscall.NewCallbackCDecl to be called on a non-Go thread.

Fixes #6751

Change-Id: I57626bc009a6370b9ca0827ab64b14b01dec39d4
GitHub-Last-Rev: d429e3eed9
GitHub-Pull-Request: golang/go#25575
Reviewed-on: https://go-review.googlesource.com/114802
Reviewed-by: Alex Brainman <alex.brainman@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-05 13:50:06 +00:00
Robert Griesemer 4a2bec9726 cmd/compile: fix printing of array types in error messages
Fixes #23094.

Change-Id: I9aa36046488baa5f55cf2099e10cfb39ecd17b06
Reviewed-on: https://go-review.googlesource.com/116256
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-05 00:43:22 +00:00
Robert Griesemer 75c1aed345 runtime: slightly better error message for assertion panics with identical looking types
Fixes #18911.

Change-Id: Ice10f37460a4f0a66cddeacfe26c28045f5e60fe
Reviewed-on: https://go-review.googlesource.com/116255
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-06-05 00:29:50 +00:00
Rebecca Stambler b219a68ad9 strconv: check for empty string in UnquoteChar
The existing implementation panics on malformed input of an empty
string. strconv.Unquote validates the length of the inputs, but calling
UnquoteChar directly with an empty string leads to a panic, so add a
check for length. Also, add a test to go/constant to ensure that
MakeFromLiteral does not panic on malformed input such as
"const x = ''".

Change-Id: I4217e38db48a09a21ec414bbfb3087709da62904
Reviewed-on: https://go-review.googlesource.com/116215
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-06-04 22:06:42 +00:00
Tobias Klauser d0228b03bd net: drop special case for macOS 10.7 and earlier
Updates #23122

Change-Id: Ia2c869a140c8ee01b5861897e4706389950d387e
Reviewed-on: https://go-review.googlesource.com/116156
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-04 18:40:49 +00:00
Ian Lance Taylor d6c3b0a56d runtime: don't crash holding locks on racy timer access
If we run into data corruption due to the program accessing timers in
a racy way, do a normal panic rather than a hard crash with "panic
holding locks". The hope is to make the problem less confusing for users.

Fixes #25686

Change-Id: I863417adf21f7f8c088675b67a3acf49a0cdef41
Reviewed-on: https://go-review.googlesource.com/115815
Reviewed-by: Austin Clements <austin@google.com>
2018-06-04 18:33:41 +00:00
Josh Bleecher Snyder cf2c2ea89d text/tabwriter: fix BenchmarkPyramid and BenchmarkRagged again
These were added in CL 106979. I got them wrong.
They were fixed in CL 111643. They were still wrong.
Hopefully this change will be the last fix.

With this fix, CL 106979 is allocation-neutral for BenchmarkRagged.
The performance results for BenchmarkPyramid reported in CL 111643 stand.

Change-Id: Id6a522e6602e5df31f504adf5a3bec9969c18649
Reviewed-on: https://go-review.googlesource.com/116015
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-06-04 17:32:17 +00:00
Richard Musiol ef9217e7bd net: add js/wasm architecture
This commit adds the js/wasm architecture to the net package.
The net package is not supported by js/wasm, but a simple fake
networking is available so tests of other packages that require
basic TCP sockets can pass. The tests of the net package itself
are mostly disabled.

Updates #18892

Change-Id: Id287200c39f0a3e23d20ef17260ca15ccdcca032
Reviewed-on: https://go-review.googlesource.com/109995
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-04 16:01:50 +00:00
cch123 0680c03ea4 runtime: fix typo in the templateThread godoc
Change-Id: Ie8d563d39b88ab1631bc150d7d5bdbf1aa400f76
GitHub-Last-Rev: d092c8c8eb
GitHub-Pull-Request: golang/go#25716
Reviewed-on: https://go-review.googlesource.com/116115
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
2018-06-04 15:26:17 +00:00
Bryan C. Mills 8994444491 runtime/race: update most syso files to compiler-rt fe2c72
These were generated using the racebuild configuration from
https://golang.org/cl/115375, with the LLVM compiler-rt repository at
commit fe2c72c59aa7f4afa45e3f65a5d16a374b6cce26 for most platforms.

The Windows build is from an older compiler-rt revision, because the
compiler-rt build script for the Go race detector has been broken
since January 2017 (https://reviews.llvm.org/D28596).

Updates #24354.

Change-Id: Ica05a5d0545de61172f52ab97e7f8f57fb73dbfd
Reviewed-on: https://go-review.googlesource.com/112896
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-04 15:14:22 +00:00
Wei Xiao ab5031fb86 syscall: fix EpollWait for arm64
The SYS_EPOLL_WAIT syscall doesn't exist on arm64. This CL implements EpollWait
with SYS_EPOLL_PWAIT syscall.

Change-Id: Ica9107a58d7da45351fe2e900f59bec5b7b18f39
Reviewed-on: https://go-review.googlesource.com/115735
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-04 15:13:16 +00:00
Johan Brandhorst fb5279cc45 net/http: fix build errors on js/wasm target
The in-progress WASM port does not yet have sufficient automatic
testing performed against it, so these errors slipped through when
adding the new Fetch API backed http.Roundtripper.

Updates #25506

Change-Id: I84c5832452e3e6067a02d926f67d01aaca66b837
GitHub-Last-Rev: 064062b5fd
GitHub-Pull-Request: golang/go#25714
Reviewed-on: https://go-review.googlesource.com/116076
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-06-04 15:05:52 +00:00
Russ Cox 446d76e62d cmd/go: fix 'go get' compatibility for direct download of vgo-aware module
CL 109340 added “minimal module-awareness for legacy operation.”
One part of that is reinterpreting imports inside code trees with go.mod files
as using semantic import versioning, and converting them back to
legacy import paths by stripping the major version element
(for example, interpreting import "x.com/foo/v2/bar" as import "x.com/foo/bar").
This rewrite was not being applied during "go get", with the effect that once
you had the target code downloaded already, everything was fine,
but it didn't download and build successfully the first time.

Fixes #25687.

Change-Id: I3e122efdc8fd9a0a4e66f5aa3e6a99f90c7df779
Reviewed-on: https://go-review.googlesource.com/115797
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-06-04 14:18:39 +00:00
Iskander Sharipov 41dd2ebcee cmd/asm/internal/asm: add extra AVX-512 tests
These tests were meant to be included into https://golang.org/cl/113315,
but were lost somewhere in the middle.

This CL adds hand-written AVX-512 tests that complement
auto-generated test suite.

It's worth including it, because:

	- It covers every new Z-case explicitly
	- Does checks every opcode suffix encoding

Change-Id: Id6da5f58773e07bef3d532fc3ca5db391d380ebf
Reviewed-on: https://go-review.googlesource.com/115858
Run-TryBot: Iskander Sharipov <iskander.sharipov@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-06-04 04:07:13 +00:00
Keith Randall 06b326054d cmd/compile: include callee args section when checking frame too large
The stack frame includes the callee args section. At the point where
we were checking the frame size, that part of the frame had not been
computed yet. Move the check later so we can include the callee args size.

Fixes #20780
Update #25507

Change-Id: Iab97cb89b3a24f8ca19b9123ef2a111d6850c3fe
Reviewed-on: https://go-review.googlesource.com/115195
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2018-06-02 18:00:44 +00:00
Tim Cooper 161874da2a all: update comment URLs from HTTP to HTTPS, where possible
Each URL was manually verified to ensure it did not serve up incorrect
content.

Change-Id: I4dc846227af95a73ee9a3074d0c379ff0fa955df
Reviewed-on: https://go-review.googlesource.com/115798
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
2018-06-01 21:52:00 +00:00
Yury Smolsky 7cb1810fe8 test: skip test/fixedbugs/bug345.go on windows
Before the CL 115277 we did not run the test on Windows,
so let's just go back to not running the test on Windows.
There is nothing OS-specific about this test,
so skipping it on Windows doesn't seem like a big deal.

Updates #25693
Fixes #25586

Change-Id: I1eb3e158b322d73e271ef388f8c6e2f2af0a0729
Reviewed-on: https://go-review.googlesource.com/115857
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-06-01 21:46:07 +00:00
Hana Kim c7519f0dae runtime/trace: remove remaining NewContext reference
This is a documentation error.

Change-Id: I083021f151f7e80a0b9083b98452ae1f5920640d
Reviewed-on: https://go-review.googlesource.com/115598
Reviewed-by: Peter Weinberger <pjw@google.com>
2018-06-01 19:33:34 +00:00
Martin Möhrmann b280edb89e cmd/compile: fix comment to reference runtime.countrunes
Updates #24923

Change-Id: Ie5a1b54b023381b58df618080f3d742a50d46d8b
Reviewed-on: https://go-review.googlesource.com/115836
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-01 19:18:43 +00:00
Robert Griesemer 6cfeedb229 go/types: remove visited flag for constants and variables (cleanup)
Now that we have a color marking scheme for all objects, the
pre-existing 'visited' flag for constants and variables is
redundant: visited is the same as marking an object non-white.

Refactor the respective 'visited' flag logic from constDecl and
varDecl into the color switch in objDecl and remove the 'visited'
flag.

Follow-up on https://go-review.googlesource.com/c/go/+/114517 .

Change-Id: Ie20de65e3b26a5a6ff7b0eddc3d089f56be204e8
Reviewed-on: https://go-review.googlesource.com/115619
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-06-01 17:36:40 +00:00
Ben Shi 3d6e4ec0a8 cmd/internal/obj/arm64: fix two issues in the assembler
There are two issues in the arm64 assembler.

1. "CMPW $0x22220000, RSP" is encoded to 5b44a4d2ff031b6b, which
   is the combination of "MOVD $0x22220000, Rtmp" and
   "NEGSW Rtmp, ZR".
   The right encoding should be a combination of
   "MOVD $0x22220000, Rtmp" and "CMPW Rtmp, RSP".

2. "AND $0x22220000, R2, RSP" is encoded to 5b44a4d25f601b00,
   which is the combination of "MOVD $0x22220000, Rtmp" and
   an illegal instruction.
   The right behavior should be an error report of
   "illegal combination", since "AND Rtmp, RSP, RSP" is invalid
   in armv8.

This CL fixes the above 2 issues and adds more test cases.

fixes #25557

Change-Id: Ia510be26b58a229f5dfe8a5fa0b35569b2d566e7
Reviewed-on: https://go-review.googlesource.com/114796
Run-TryBot: Ben Shi <powerman1st@163.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
2018-06-01 15:24:42 +00:00
Richard Musiol 063f97a611 os: add js/wasm architecture
This commit adds the js/wasm architecture to the os package.

Access to the actual file system is supported through Node.js.

Updates #18892

Change-Id: I6fa642fb294ca020b2c545649d4324d981aa0408
Reviewed-on: https://go-review.googlesource.com/109977
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-06-01 05:18:38 +00:00
Ian Lance Taylor a7e0a920ad archive/zip: remove unnecessary words in (*Writer).Close docs
Fixes #25599

Change-Id: I19ac3463682f662515feaf4c6132f55c12ba5386
Reviewed-on: https://go-review.googlesource.com/115618
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-31 22:48:13 +00:00
Josh Bleecher Snyder a34e6650c0 encoding/hex: improve Decode and DecodeString docs
Simplify the wording of both.

Make the DecodeString docs more accurate:
DecodeString returns a slice, not a string.

Change-Id: Iba7003f55fb0a37aafcbeee59a30492c0f68aa4e
Reviewed-on: https://go-review.googlesource.com/115615
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-05-31 19:49:01 +00:00
Robert Griesemer e4259d67b9 go/types: report object path in trace mode
For debugging only; disabled (dead code) by default
unless internal constant trace flag is set to true.

For #8699.

Change-Id: Ib7b272c6ac8efacccbbbe24650ef500c5a9ddcf5
Reviewed-on: https://go-review.googlesource.com/115457
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-05-31 18:22:35 +00:00
Robert Griesemer 6dbaf0352a go/types: better cycle reporting for some cyclic composite literals
To evaluate the type of composite literals, the type checker called
Checker.typ which breaks cycles. As a result, certain cycles were
not reported with actual cycle reporting, but caught due to other
uninitialized fields (with less nice error message).

The change now calls Checker.typExpr at the relevant call site.

For #18643.

Change-Id: Iecb3f0e1afb4585b85553b6c581212f52ac3a1c4
Reviewed-on: https://go-review.googlesource.com/115456
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-05-31 18:22:15 +00:00
Robert Griesemer 462c182ce7 go/types: use color-marking based cycle detection at package level
The existing cycle detection scheme passes around a (type name)
path; when a type name re-appears in the path, a cycle is reported.
Indirections (as in *T, func(T), etc.) are broken by starting a new
(nil) path. The problem with this approach is that it doesn't work
for cycles involving alias type names since they may be invalid
even if there is an indirection. Furthermore, the path must be
passed around through all functions which is currently not the
case, which leads to less optimial error reporting.

The new code is using the previously introduced color marking
scheme and global object path for package-level cycle detection
(function-local cycle detection doesn't use the same code path
yet but is also much less important as cycles can only be created
using the type being declared).

The new code is guarded with an internal flag (useCycleMarking)
so it can be disabled in short notice if this change introduced
unexpected new issues.

Fixes #23139.
Fixes #25141.

For #18640.
For #24939.

Change-Id: I1bbf2d2d61a375cf5885b2de1df0a9819d63e5fa
Reviewed-on: https://go-review.googlesource.com/115455
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-05-31 18:21:53 +00:00
Robert Griesemer e57cdd81e2 go/types: initial framework for marking-based cycle detection
The existing code explicitly passes a (type name) path around
to determine cycles; it also restarts the path for types that
"break" a cycle (such as a pointer, function, etc.). This does
not work for alias types (whose cycles are broken in a different
way). Furthermore, because the path is not passed through all
type checker functions that need it, we can't see the path or
use it for detection of some cycles (e.g. cycles involving array
lengths), which required ad-hoc solutions in those cases.

This change introduces an explicit marking scheme for any kind
of object; an object is painted in various colors indicating
its state. It also introduces an object path (a stack) main-
tained with the Checker state, which is available in all type
checker functions that need access to it.

The change only introduces these mechanisms and exercises the
basic functionality, with no effect on the existing code for
now.

For #25141.

Change-Id: I7c28714bdafe6c8d9afedf12a8a887554237337c
Reviewed-on: https://go-review.googlesource.com/114517
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-05-31 18:21:18 +00:00
Yury Smolsky 57d40f1b27 test: remove rundircmpout and cmpout actions
This CL removes the rundircmpout action completely
because it is not used anywhere.

The run case already looks for output files. Rename the cmpout action
mentioned in tests to the run action and remove "cmpout" from run.go.

Change-Id: I835ceb70082927f8e9360e0ea0ba74f296363ab3
Reviewed-on: https://go-review.googlesource.com/115575
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-31 17:36:45 +00:00
Hana Kim 424c215739 cmd/pprof: fix help message formatting error
Pprof usage message includes "%" symbols. Misuse of Fprintf caused
the message to be interpreted as a format string and corrupted the usage
message.

Change-Id: I4732b491e2368cff9fdbfe070c125228d6f506fd
Reviewed-on: https://go-review.googlesource.com/115595
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-31 17:29:10 +00:00
Constantin Konstantinidis 6b4828a206 encoding/asn1: fix returned type for an Object Identifier
Unmarshal/Marshal/Unmarshal was not idempotent as the Object Identifier
type was not returned through the interface. The limit case OID = 0
returns an error. The zero OID is 0.0

A test is fixed to use the Object Identifier type.
Other related test are added.

Fixes #11130

Change-Id: I15483a3126066c9b99cf5bd9c4b0cc15ec1d61ca
Reviewed-on: https://go-review.googlesource.com/113837
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
2018-05-31 15:24:46 +00:00
Zhou Peng c4f9fa1f8e reflect: reuse values during comparison of maps in DeepEqual
Change-Id: I82f999b8ed9434321a361bf1bcbed7cf6ee4bee6
Reviewed-on: https://go-review.googlesource.com/115475
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-05-31 15:18:53 +00:00
Johan Brandhorst 08e2e880e7 net/http: use fake Transport network when running in Node
Replaces the existing local loopback check with a check to see
whether the program is being interpreted by Node. This means
tests that are run with Node will use the fake network while still
allowing users who are using js/wasm to talk to local networks.

Updates #25506

Change-Id: I8bc3c6808fa29293b7ac5f77b186140c4ed90b51
GitHub-Last-Rev: 43d26af7bc
GitHub-Pull-Request: golang/go#25663
Reviewed-on: https://go-review.googlesource.com/115495
Reviewed-by: Agniva De Sarker <agniva.quicksilver@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-31 15:13:02 +00:00
Austin Clements 33cd4fba38 Revert "cmd/compile: ignore g register in liveness analysis"
This reverts commit ea200340702cf3ccfac7c5db1f11bb65c80971c7 now
that CL 114695 fixed the root cause of #25504.

Change-Id: If437fc832983bd8793bde28ce0e2e64436a0596c
Reviewed-on: https://go-review.googlesource.com/114087
Reviewed-by: David Chase <drchase@google.com>
2018-05-31 14:50:57 +00:00
Alberto Donizetti bfdf74be12 Revert "testing: only compute b.N once when passed -count > 1"
This reverts golang.org/cl/110775

Reason for revert: this is causing huge slow-dows on every run after
the 1st, on various benchmarks, on multiple architectures (see Issue
25622 for details). It's just a nice-to-have little optimization, and
we're near the 1st go1.11 beta release, so I'm reverting it.

Fixes #25622

Change-Id: I758ade4af4abf764abd8336d404396992d11a0c6
Reviewed-on: https://go-review.googlesource.com/115535
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
2018-05-31 14:22:44 +00:00
Yury Smolsky caf968616a test: eliminate use of Perl in fixedbugs/bug345.go
To allow testing of fixedbugs/bug345.go in Go,
a new flag -n is introduced. This flag disables setting
of relative path for local imports and imports search path
to current dir, namely -D . -I . are not passed to the compiler.
Error regexps are fixed to allow running the test in temp directory.

This change eliminates the last place where Perl
script "errchk" was used.

Fixes #25586.

Change-Id: If085f466e6955312d77315f96d3ef1cb68495aef
Reviewed-on: https://go-review.googlesource.com/115277
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-05-31 13:29:50 +00:00
Yury Smolsky fffb3a5c20 testing: make indentation consistent in sub-tests
Instead of mixed usage of spaces and tabs for indentation,
just use 4 spaces instead of one tab.

This test:

func TestX(t *testing.T) {
	t.Error("1\nnew line")
	t.Error("2")
	t.Error("3")
	t.Run("Y", func(t *testing.T) {
		t.Error("2")
		t.Error("2b\nnew line")
		t.Run("Z", func(t *testing.T) {
			t.Error("3\nnew line")
		})
	})
	t.Error("4")
}

produces following output:

--- FAIL: TestX (0.00s)
    indent_test.go:6: 1
	new line
    indent_test.go:7: 2
    indent_test.go:8: 3
    --- FAIL: TestX/Y (0.00s)
	indent_test.go:10: 2
	indent_test.go:11: 2b
	    new line
	--- FAIL: TestX/Y/Z (0.00s)
	    indent_test.go:13: 3
		new line
    indent_test.go:16: 4
FAIL

Fixes #25369

Change-Id: Ib3b5da45ab3ee670c6e8a23172e7cbefb94c5e60
Reviewed-on: https://go-review.googlesource.com/113177
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Marcel van Lohuizen <mpvl@golang.org>
2018-05-31 07:20:38 +00:00