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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
This is a documentation error.
Change-Id: I083021f151f7e80a0b9083b98452ae1f5920640d
Reviewed-on: https://go-review.googlesource.com/115598
Reviewed-by: Peter Weinberger <pjw@google.com>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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.
Fixesgolang/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>
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>
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>
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>
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>
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>
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>
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>
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>
This ensures that all struct fields are present and thus the struct
has the original number of fields even if some fields have type
errors. (This only applies as long as the field names themselves
don't conflict.)
Fixes#25627.
Change-Id: I2414b1f432ce139b3cd2776ff0d46d8dcf38b650
Reviewed-on: https://go-review.googlesource.com/115115
Reviewed-by: Alan Donovan <adonovan@google.com>
Fixes#25435
The added test fails without the re-slice and passes with it.
Change-Id: I5ebc2a737285eb116ecc5938d8bf49050652830f
GitHub-Last-Rev: 454ddad7df
GitHub-Pull-Request: golang/go#25436
Reviewed-on: https://go-review.googlesource.com/113495
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
The profiler reports "ExternalCode" when a profiler interrupt happens
while in libc code. Instead, keep track of the most recent Go frame
for the profiler to use.
There is a test for this using time.Now (runtime.TestTimePprof),
which will work once time.Now is moved to using libc (my next CL).
Change-Id: I940ea83edada482a482e2ab103d3a65589979464
Reviewed-on: https://go-review.googlesource.com/114798
Run-TryBot: Keith Randall <khr@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
When we deadcode-remove a block which is a write barrier test,
remove that block from the list of write barrier test blocks.
Fixes#25516
Change-Id: I1efe732d5476003eab4ad6bf67d0340d7874ff0c
Reviewed-on: https://go-review.googlesource.com/115037
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
It's harmless, and can be useful to see what's happening under the hood.
Fixes#24593.
Change-Id: Iacff378471e86c33aa048161cd65c504709fb339
Reviewed-on: https://go-review.googlesource.com/115075
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
vet's buildtag check looks for malformed build tag comments. Since these
can appear in Go files as well as non-Go files (such as assembly files),
it must read the file line by line instead of using go/token or go/ast
directly.
However, this method runs into false positives if there are any lines in
the code that look like comments, but are not. For example:
$ cat f.go
package main
const foo = `
//+build ignore
`
$ go vet f.go
./f.go:3: +build comment must appear before package clause and be followed by a blank line
This bug has been popping up more frequently since vet started being run
with go test, so it is important to make the check as precise as
possible.
To avoid the false positive, when checking a Go file, cross-check that a
line that looks like a comment actually corresponds to a comment in the
go/ast syntax tree. Since vet already obtains the syntax trees for all
the Go files, it checks, this change means very little extra work for
the check.
While at it, add a badf helper function to simplify the code that
reports warnings in the buildtag check.
Fixes#13533.
Change-Id: I484a16da01363b409ec418c313634171bf85250b
Reviewed-on: https://go-review.googlesource.com/111415
Run-TryBot: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Extend stack frame limit of 1GB to include large argument/return areas.
Argument/return areas are part of the parent frame, not the frame itself,
so they need to be handled separately.
Fixes#25507.
Change-Id: I309298a58faee3e7c1dac80bd2f1166c82460087
Reviewed-on: https://go-review.googlesource.com/115036
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Change cgo to follow https://golang.org/s/generatedcode.
For the C code we continue to use /* */ comments, so they don't follow
the format exactly. It doesn't really matter since the format is only
for Go code anyhow. This CL changes the C code to be similar for
consistency.
Fixes#25623
Change-Id: Idcfee53ec4069924d173ab8cedeb7bcfb7312863
Reviewed-on: https://go-review.googlesource.com/115035
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
This is a simple but everyday use case in image libraries. Currently,
there is one example in this library and it is lengthy and involved.
This PR will be imported into Gerrit with the title and first
comment (this text) used to generate the subject and body of
the Gerrit change.
Change-Id: Idca527d97c095af88755446e1548fa2b8ace7eb0
GitHub-Last-Rev: f5743c8ef3
GitHub-Pull-Request: golang/go#25616
Reviewed-on: https://go-review.googlesource.com/114939
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
* Fix typos in the comments in the assembly code for the crypto package.
Change-Id: Iac146a7d8bee4a680a8d4d3af533fbc1b259482d
GitHub-Last-Rev: 65090a3895
GitHub-Pull-Request: golang/go#25606
Reviewed-on: https://go-review.googlesource.com/114803
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This change uses errorCheck and wantedErrors functions copied from
the test/run.go to eliminate use of the test/errchk perl script.
Tests' error messages that contained full filenames were changed to
have base filenames because the errorCheck function processes output
from "go vet" in the same way.
Fixes#20032.
Change-Id: Ieb7be67c2d7281b9648171c698398449b7e2d4dd
Reviewed-on: https://go-review.googlesource.com/114176
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Alan Donovan <adonovan@google.com>
If a span of coverable code is empty (e.g. an empty select clause)
then there will be two Boundary values with the same offset. In that
case, the starting Boundary needs to come first so that the generated
HTML output will open the <span> tag before it tries to close it.
Change-Id: Ib44a8b7c36ae57757c18b6cceb7a88ffa4e95394
Reviewed-on: https://go-review.googlesource.com/114855
Reviewed-by: Rob Pike <r@golang.org>
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
We look for "-o /dev/null", and, if found, pretend that there was no
"-o" option and don't generate an action to create the final executable.
We look for "go build x.go", and, if found, and if -o was not used,
pretend that the user specified "-o x".
Unfortunately, we were doing those in the wrong order, so that "go
build -o /dev/null x.go" would first clear the "-o" option and then
set it to "-o x".
This CL flips the order so that the right thing happens.
Fixes#25579
Change-Id: Ic9556ac0a57f7b45b685951bc96ba5ea4633b860
Reviewed-on: https://go-review.googlesource.com/114715
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
I don't know why these files were not formatted. Perhaps because
their changes came from Github PRs?
Change-Id: Ida8d7b9a36f0d1064caf74ca1911696a247a9bbe
Reviewed-on: https://go-review.googlesource.com/114824
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
In golang.org/cl/102355 I mistakenly used 26 instead of 25 as the AT_HWCAP value.
26 is AT_HWCAP2. While experimenting with FreeBSD-11.2-BETA3 (where both values are
being supplied in the auxv), the AT_HWCAP2 value read is 0 which triggers the error again:
runtime: this CPU has no floating point hardware, so it cannot run this GOARM=7 binary. Recompile using GOARM=5.
Updates #24507.
Change-Id: Ide04b7365d8f10e4650edf4e188dd58bdf42cc26
Reviewed-on: https://go-review.googlesource.com/114822
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
go build
command is short for
go build .
and it builds . package. When command above is executed from
directory inside of GOPATH, it uses GOPATH to calculate package
source directory. So . package uses GOPATH as part of package
source directory.
On the other hand
go build -ldflags=abc
only passes flag to the linker for packages that are listed
on the command line. The command above assumes . package again,
and that package source path is compared with current directory.
Current code compares result of os.Getwd with what GOPATH
environment variable contains. But these values might differ
in letter case on Windows. For example, one might return
c:\gopath\..., while the other might contain C:\GOPATH.
Fixes#24750Fixes#24232Fixes#25046
Change-Id: I03d8c7a9b73e847f88ae61c88cd41efa546c6d0e
Reviewed-on: https://go-review.googlesource.com/109235
Run-TryBot: Alex Brainman <alex.brainman@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Fix a problem in DWARF inline debug generation relating to handling of
statically unreachable local variables. For a function such as:
const always = true
func HasDeadLocal() int {
if always {
return 9
}
x := new(Something)
...
return x.y
}
the variable "x" is placed onto the Dcl list for the function during
parsing, but the actual declaration node is deleted later on when
gc.Main invokes "deadcode". Later in the compile the DWARF code emits
an abstract function with "x" (since "x" was on the Dcl list at the
point of the inline), but the export data emitted does not contain
"x". This then creates clashing/inconsistant DWARF abstract function
DIEs later on if HasDeadLocal is inlined in somewhere else.
As a fix, the inliner now pruned away variables such as "x" when
creating a copy of the Dcl list as part of the inlining; this means
that both the export data generator and the DWARF emitter wind up
seeing a consistent picture.
Fixes#25459
Change-Id: I753dc4e9f9ec694340adba5f43c907ba8cc9badc
Reviewed-on: https://go-review.googlesource.com/114090
Run-TryBot: Than McIntosh <thanm@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
While fixing some failing tests, CL 114416 also picked up the newly
added TestXattr from golang.org/x/sys/unix which fails on android. Pick
up CL 114535 to fix it as well.
Also pick up CL 114616 to fix TestStatx occasionally failing on linux.
Change-Id: I6ebebd7761fa7a086d96ee0447dbbc5c6b94131d
Reviewed-on: https://go-review.googlesource.com/114575
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This also allows the GODEBUGCPU options to change the
support_* runtime cpu feature variable values.
Change-Id: I884c5f03993afc7e3344ff2fd471a2c6cfde43d4
Reviewed-on: https://go-review.googlesource.com/114615
Run-TryBot: Martin Möhrmann <moehrmann@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
-W and -w turn on printing of Nodes for both order and walk.
I have found their output mildly incomprehensible for years.
Improve it, at long last.
Change-Id: Ia05d77e59aa741c2dfc9fcca07f45019420b655e
Reviewed-on: https://go-review.googlesource.com/114520
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
