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36939 Commits

Author SHA1 Message Date
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
Audrius Butkevicius
3c4d3bdd3b net: add ListenConfig, Dialer.Control to permit socket opts before listen/dial
Existing implementation does not provide a way to set options such as
SO_REUSEPORT, that has to be set prior the socket being bound.

New exposed API:
pkg net, method (*ListenConfig) Listen(context.Context, string, string) (Listener, error)
pkg net, method (*ListenConfig) ListenPacket(context.Context, string, string) (PacketConn, error)
pkg net, type ListenConfig struct
pkg net, type ListenConfig struct, Control func(string, string, syscall.RawConn) error
pkg net, type Dialer struct, Control func(string, string, syscall.RawConn) error

Fixes #9661

Change-Id: If4d275711f823df72d3ac5cc3858651a6a57cccb
Reviewed-on: https://go-review.googlesource.com/72810
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-05-30 22:54:22 +00:00
Ian Lance Taylor
cc6e568c81 cmd/go: accept more safe CFLAGS/LDFLAGS
Fixes #23749
Fixes #24703
Fixes #24858

Change-Id: Ib32d8efee294004c70fdd602087df2da0867f099
Reviewed-on: https://go-review.googlesource.com/115415
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-30 22:38:09 +00:00
Mikio Hara
999e230ac1 net/http: use DialWithConn method of socks.Dialer
This change uses the DialWithConn method of socks.Dialer to ensure that
the bundled SOCKS client implementation is agnostic to the behavior and
capabilities of transport connections.

Also updates the bundled golang.org/x/net/internal/socks at git rev
7594486. (golang.org/cl/110135)

Updates #25104.

Change-Id: I87c2e99eeb857f182ea5d8ef569181d4f45f2e5d
Reviewed-on: https://go-review.googlesource.com/110136
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-30 21:52:52 +00:00
Tobias Klauser
7ea2c8cf1b os/exec: gofmt
CL 109361 introduced some changes which were not properly gofmt'ed.
Because the CL was sent via Github no gofmt checks were performed
on it (cf. #24946, #18548).

Change-Id: I207065f01161044c420e272f4fd112e0a59be259
Reviewed-on: https://go-review.googlesource.com/115356
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-30 19:57:39 +00:00
Ilya Tocar
323c85862a strconv: simplify (*extFloat).Normalize
Use math/bits.LeadingZeros64 instead of local implementation.
This simplifies code, makes Normalize inlinable and fixes performance regression.
Idea was suggested by Giovanni Bajo in #25298

Performance results below:
Atof64Decimal-6                          46.7ns ± 0%  46.7ns ± 0%     ~     (all equal)
Atof64Float-6                            57.9ns ± 1%  56.9ns ± 0%   -1.72%  (p=0.000 n=10+9)
Atof64FloatExp-6                          163ns ± 0%   123ns ± 0%  -24.54%  (p=0.002 n=8+10)
Atof64Big-6                               222ns ± 1%   185ns ± 1%  -16.65%  (p=0.000 n=9+10)
Atof64RandomBits-6                        155ns ± 2%   154ns ± 3%     ~     (p=0.225 n=10+10)
Atof64RandomFloats-6                      156ns ± 2%   154ns ± 2%     ~     (p=0.124 n=10+9)
Atof32Decimal-6                          47.3ns ± 0%  46.7ns ± 0%   -1.26%  (p=0.000 n=7+9)
Atof32Float-6                            51.5ns ± 1%  51.6ns ± 1%     ~     (p=0.455 n=10+9)
Atof32FloatExp-6                          163ns ± 1%   124ns ± 1%  -24.36%  (p=0.000 n=10+10)
Atof32Random-6                            199ns ± 1%   163ns ± 0%  -17.93%  (p=0.000 n=10+10)
FormatFloat/Decimal-6                     209ns ± 2%   211ns ± 2%     ~     (p=0.402 n=10+10)
FormatFloat/Float-6                       393ns ± 2%   379ns ± 1%   -3.57%  (p=0.000 n=10+10)
FormatFloat/Exp-6                         333ns ± 2%   321ns ± 1%   -3.56%  (p=0.000 n=10+9)
FormatFloat/NegExp-6                      338ns ± 3%   317ns ± 1%   -6.27%  (p=0.000 n=10+9)
FormatFloat/Big-6                         457ns ± 1%   443ns ± 2%   -2.99%  (p=0.000 n=9+10)
FormatFloat/BinaryExp-6                   230ns ± 2%   232ns ± 2%     ~     (p=0.070 n=10+10)
FormatFloat/32Integer-6                   209ns ± 2%   211ns ± 1%     ~     (p=0.203 n=10+8)
FormatFloat/32ExactFraction-6             330ns ± 2%   319ns ± 1%   -3.42%  (p=0.000 n=10+10)
FormatFloat/32Point-6                     393ns ± 2%   377ns ± 1%   -4.15%  (p=0.000 n=10+10)
FormatFloat/32Exp-6                       331ns ± 2%   318ns ± 2%   -4.02%  (p=0.000 n=10+10)
FormatFloat/32NegExp-6                    327ns ± 2%   315ns ± 2%   -3.70%  (p=0.000 n=10+10)
FormatFloat/64Fixed1-6                    265ns ± 2%   253ns ± 2%   -4.38%  (p=0.000 n=10+10)
FormatFloat/64Fixed2-6                    278ns ± 2%   262ns ± 3%   -5.71%  (p=0.000 n=10+10)
FormatFloat/64Fixed3-6                    271ns ± 2%   260ns ± 2%   -4.03%  (p=0.000 n=10+10)
FormatFloat/64Fixed4-6                    277ns ± 3%   267ns ± 1%   -3.55%  (p=0.000 n=10+9)
FormatFloat/Slowpath64-6                 71.0µs ± 0%  71.0µs ± 0%     ~     (p=0.744 n=10+8)
AppendFloat/Decimal-6                     100ns ± 1%   100ns ± 0%     ~     (p=0.294 n=10+8)
AppendFloat/Float-6                       273ns ± 0%   260ns ± 1%   -4.87%  (p=0.000 n=7+10)
AppendFloat/Exp-6                         213ns ± 0%   200ns ± 0%   -6.29%  (p=0.000 n=8+10)
AppendFloat/NegExp-6                      211ns ± 0%   198ns ± 0%   -6.16%  (p=0.000 n=8+8)
AppendFloat/Big-6                         319ns ± 0%   305ns ± 0%   -4.31%  (p=0.000 n=8+7)
AppendFloat/BinaryExp-6                  98.4ns ± 0%  92.9ns ± 0%   -5.63%  (p=0.000 n=9+8)
AppendFloat/32Integer-6                   101ns ± 1%   102ns ± 1%   +0.89%  (p=0.004 n=10+10)
AppendFloat/32ExactFraction-6             222ns ± 1%   210ns ± 0%   -5.28%  (p=0.000 n=10+9)
AppendFloat/32Point-6                     273ns ± 1%   261ns ± 1%   -4.62%  (p=0.000 n=10+9)
AppendFloat/32Exp-6                       209ns ± 1%   197ns ± 0%   -5.56%  (p=0.000 n=10+9)
AppendFloat/32NegExp-6                    207ns ± 1%   194ns ± 1%   -6.18%  (p=0.000 n=10+10)
AppendFloat/64Fixed1-6                    145ns ± 0%   131ns ± 1%   -9.93%  (p=0.000 n=9+10)
AppendFloat/64Fixed2-6                    160ns ± 0%   146ns ± 0%   -8.58%  (p=0.000 n=10+8)
AppendFloat/64Fixed3-6                    147ns ± 1%   132ns ± 1%  -10.25%  (p=0.000 n=10+10)
AppendFloat/64Fixed4-6                    161ns ± 1%   149ns ± 0%   -7.93%  (p=0.000 n=10+10)
AppendFloat/Slowpath64-6                 70.6µs ± 1%  70.9µs ± 0%   +0.37%  (p=0.000 n=10+8)

Change-Id: I63bbc40905abd795fbd24743604c790023d11a43
Reviewed-on: https://go-review.googlesource.com/113256
Run-TryBot: Ilya Tocar <ilya.tocar@intel.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-05-30 19:28:20 +00:00
Audrius Butkevicius
9b49edef50 net: fix leftover variable names from CL 115175
Change-Id: I5f78fe3286bf4667b6922c57c5701c09bf56e182
Reviewed-on: https://go-review.googlesource.com/115355
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-30 19:09:24 +00:00
Alan Donovan
0b8d9d425a go/types: fix typo causing loss of embedded interfaces
Simplified the code per prior suggestion to avoid that
kind of error in the first place.

Also: Fix subtle error in Interface.Complete where an
interface may have ended up incomplete if both the list
of methods and the list of embedded interfaces was nil.

Expanded existing test to cover all these cases.

Fixes golang/go#25577

Change-Id: If8723a8b0c4570f02b3dadfa390f96dd98ce11c8
Reviewed-on: https://go-review.googlesource.com/114504
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-05-30 18:13:35 +00:00
Russ Cox
d4e21288e4 cmd/go: add minimal module-awareness for legacy operation
We want authors to be able to publish code that works with both
the current standard go command and the planned new go command
support for modules. If authors have tagged their code v2 or later,
semantic import versioning means the import paths must include a
v2 path element after the path prefix naming the module.
One option for making this convention compatible with original go get
is to move code into a v2 subdirectory of the root.
That makes sense for some authors, but many authors would prefer
not to move all the code into a v2 subdirectory for a transition and
then move it back up once we everyone has a module-aware go command.

Instead, this CL teaches the old (non-module-aware) go command
a tiny amount about modules and their import paths, to expand
the options for authors who want to publish compatible packages.
If an author has a v2 of a package, say my/thing/v2/sub/pkg,
in the my/thing repo's sub/pkg subdirectory (no v2 in the file system path),
then old go get continues to import that package as my/thing/sub/pkg.
But when go get is processing code in any module (code in a tree with
a go.mod file) and encounters a path like my/thing/v2/sub/pkg,
it will check to see if my/thing/go.mod says "module my/thing/v2".
If so, the go command will read the import my/thing/v2/sub/pkg
as if it said my/thing/sub/pkg, which is the correct "old" import path
for the package in question.

This CL will be back-ported to Go 1.10 and Go 1.9 as well.

Once users have updated to the latest Go point releases containing
this new logic, authors will be able to update to using modules
within their own repos, including using semantic import paths
with vN path elements, and old go get will still be able to consume
those repositories.

This CL also makes "go get" ignore meta go-import lines using
the new "mod" VCS type. This allows a package to specify both
a "mod" type and a "git" type, to present more efficient module
access to module-aware go but still present a Git repo to the old
"go get".

Fixes #24751.
Fixes #25069.

Change-Id: I378955613a0d63834d4f50f121f4db7e4d87dc0a
Reviewed-on: https://go-review.googlesource.com/109340
Run-TryBot: Russ Cox <rsc@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
2018-05-30 18:03:08 +00:00
teague
b9ecac03cb net/http/httputil: reduced log verbosity in reverseproxy_test.go
For functions TestClonesRequestHeaders and TestReverseProxy_PanicBodyError,
I made changes to update the log verbosity.

Fixes #25634

Change-Id: I2a0ef70a8191cfb1a0005949345be722fb4ab62e
Reviewed-on: https://go-review.googlesource.com/115296
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-05-30 17:30:17 +00:00
Johan Brandhorst
b12e341616 net/http: add js/wasm compatible DefaultTransport
Adds a new Transport type for the js/wasm target that uses the
JavaScript Fetch API for sending HTTP requests. Support for
streaming response bodies is used when available, falling back
to reading the entire response into memory at once.

Updates #25506

Change-Id: Ie9ea433a1a2ed2f65b03c6cc84a16e70c06fcf5c
GitHub-Last-Rev: 6df646745b
GitHub-Pull-Request: golang/go#25550
Reviewed-on: https://go-review.googlesource.com/114515
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-30 17:23:57 +00:00
David Chase
31e1c30f55 cmd/compile: do not allow regalloc to LoadReg G register
On architectures where G is stored in a register, it is
possible for a variable to allocated to it, and subsequently
that variable may be spilled and reloaded, for example
because of an intervening call.  If such an allocation
reaches a join point and it is the primary predecessor,
it becomes the target of a reload, which is only usually
right.

Fix: guard all the LoadReg ops, and spill value in the G
register (if any) before merges (in the same way that 387
FP registers are freed between blocks).

Includes test.

Fixes #25504.

Change-Id: I0482a53e20970c7315bf09c0e407ae5bba2fe05d
Reviewed-on: https://go-review.googlesource.com/114695
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
2018-05-30 16:39:21 +00:00
Hana Kim
d5bc3b96c6 cmd/vendor/.../pprof: sync at rev 1ddc9e2
This includes changes in pprof to support
 - the new -diff_base flag
 - fix for a bug in handling of legacy Go heap profiles

Update #25096

Change-Id: I826ac9244f31cc2c4415388c44a0cbe77303e460
Reviewed-on: https://go-review.googlesource.com/115295
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-30 16:31:37 +00:00
Tobias Klauser
fb0d6e4bd1 cmd/dist: remove external linking check for macOS 10.6
This was missed in CL 115236.

Updates #23122

Change-Id: I5a64bd02d356c21c0e5d02dafafb3721f8dd8e06
Reviewed-on: https://go-review.googlesource.com/115276
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-30 16:31:27 +00:00
Brian Kessler
85f4051731 math/big: implement Atkin's ModSqrt for 5 mod 8 primes
For primes congruent to 5 mod 8 there is a simple deterministic
method for calculating the modular square root due to Atkin,
using one exponentiation and 4 multiplications.

A. Atkin.  Probabilistic primality testing, summary by F. Morain.
Research Report 1779, INRIA, pages 159–163, 1992.

This increases the speed of modular square roots for these primes
considerably.

name                old time/op  new time/op  delta
ModSqrt231_5Mod8-4  1.03ms ± 2%  0.36ms ± 5%  -65.06%  (p=0.008 n=5+5)

Change-Id: I024f6e514bbca8d634218983117db2afffe615fe
Reviewed-on: https://go-review.googlesource.com/99615
Reviewed-by: Robert Griesemer <gri@golang.org>
2018-05-30 16:28:46 +00:00
Robert Griesemer
fd4392ba6f go/types: don't over-eagerly verify embedded interfaces
In https://go-review.googlesource.com/c/go/+/114317 (fix for #25301)
the constructor types.NewInterface was replaced with NewInterface2.
The new constructor aggressively verified that embedded interfaces
had an underlying type of interface type; the old code didn't do
any verification. During importing, defined types may be not yet
fully set up, and testing their underlying types will fail in those
cases.

This change only verifies embedded types that are not defined types
and thus restores behavior for defined types to how it was before
the fix for #25301.

Fixes #25596.
Fixes #25615.

Change-Id: Ifd694413656ec0b780fe4f37acaa9e6ba6077271
Reviewed-on: https://go-review.googlesource.com/115155
Run-TryBot: Robert Griesemer <gri@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
2018-05-30 15:25:21 +00:00
Tobias Klauser
f5cf72d43e cmd/link/internal/ld: drop duplicate copyright comment
The copyright message already appears at the top of macho.go. Drop the
duplicate further down in the file.

Change-Id: Ib0a69f568c4ef656bab14176223936cd2fe078d1
Reviewed-on: https://go-review.googlesource.com/115235
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-05-30 13:41:41 +00:00
Tobias Klauser
679004f484 cmd/dist: remove support for macOS 10.9 and earlier
Updates #23122

Change-Id: I14cfb83f3f78cdbe5880bd29209388ad12b9ee89
Reviewed-on: https://go-review.googlesource.com/115236
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-30 13:40:41 +00:00
Tobias Klauser
e023d5b0ac net/http: fix typo in comment
Change-Id: Ibb21c12bf67b2648eb7606bee8ec1b54e6c70dd5
Reviewed-on: https://go-review.googlesource.com/115237
Reviewed-by: Alberto Donizetti <alb.donizetti@gmail.com>
2018-05-30 13:40:36 +00:00
Mikio Hara
7d704a9760 net: fix ExampleUDPConn_WriteTo
Change-Id: I174b17395509d4c9fb55332c2405890b2a350cbd
Reviewed-on: https://go-review.googlesource.com/115218
Run-TryBot: Mikio Hara <mikioh.mikioh@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-05-30 09:10:04 +00:00
Audrius Butkevicius
c6295e72bf net: move dial and listen functions under sysDialer, sysListener
Updates #9661

Change-Id: I237e7502cb9faad6dece1e25b1a503739c54d826
Reviewed-on: https://go-review.googlesource.com/115175
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-29 23:57:04 +00:00
Brad Fitzpatrick
a4330ed694 net/http: document Server's implicit Content-Length response header
Fixes #23450

Change-Id: I829399194299d2e6d5e754b60e8f72b321b5da90
Reviewed-on: https://go-review.googlesource.com/115040
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-05-29 22:34:40 +00:00
Brad Fitzpatrick
9e56156ade net/http/httputil: pass through any "TE: trailers" header to backend
Fixes #21096

Change-Id: I2a4688a79bdaa25b4e8ef38e3390d93d3d0bce04
Reviewed-on: https://go-review.googlesource.com/115135
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-05-29 22:33:14 +00:00
Keith Randall
6c6e22e5a9 runtime: implement time.now using libc
Change-Id: Ibdd9202d9711ea8aab2446c9950ddb8e1f6bf4e0
Reviewed-on: https://go-review.googlesource.com/114799
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-05-29 22:32:30 +00:00
Carl Mastrangelo
b0ac2546b1 context: add benchmarks for context cancellation
Change-Id: I539c9226eb7e493b52c50e1e431954567d43bcfb
Reviewed-on: https://go-review.googlesource.com/100847
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2018-05-29 21:57:30 +00:00
Roger Peppe
210a9e0c7d net/http: vendor x/net/http/httpproxy, use it in net/http
From x/net git rev c7086645de2.

Updates #16704

Change-Id: I4d642478fc69a52c973964845fca2fd402716e57
Reviewed-on: https://go-review.googlesource.com/68091
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-05-29 21:54:57 +00:00