On Plan 9, locking a file requires a chmod call. In general, the go
command should not modify files in the overlay, even metadata. With
this change, we won't lock these files for reading.
The go command already reported errors when attempting to write these
files if they were in the overlay, but this change moves those checks
to the point of access for clearer error
messages. cmd/go/internal/lockedfile no longer imports
cmd/go/internal/fsys.
Fixes#44700
Change-Id: Ib544459dd6cf56ca0f7a27b3285f045f08040d7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/333012
Trust: Jay Conrod <jayconrod@google.com>
Run-TryBot: Jay Conrod <jayconrod@google.com>
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Also unexport functions that are not used outside the modload package.
Change-Id: I0de187cbb673cadafce95a27f5ccff934ae21104
Reviewed-on: https://go-review.googlesource.com/c/go/+/332570
Trust: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
The current stack growing implementation looks not right.
Specially, the line runtime/stack.go#L1068 never gets executed,
which causes many unnecessary copystack calls.
This PR is trying to correct the implementation.
As I'm not familiar with the code, the fix is just a guess.
Change-Id: I0bea1148175fad34f74f19d455c240c94d3cb78b
GitHub-Last-Rev: 57205f91fe
GitHub-Pull-Request: golang/go#47010
Reviewed-on: https://go-review.googlesource.com/c/go/+/332229
Reviewed-by: Keith Randall <khr@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
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Trust: Dmitri Shuralyov <dmitshur@golang.org>
For #19367
Change-Id: If0ff8ddba3b6b48e2e198cf3653e73284c7572a3
Reviewed-on: https://go-review.googlesource.com/c/go/+/332409
Trust: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Keith Randall <khr@golang.org>
Bypass hostname validity checking when a null mx record is returned as,
defined in RFC 7505.
Updates #46979
Change-Id: Ibe683bd6b47333a8ff30909fb2680ec8e10696ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/332094
Trust: Roland Shoemaker <roland@golang.org>
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
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Reviewed-by: Katie Hockman <katie@golang.org>
For #41260 and #46688.
Change-Id: I6f42742cc3234a90003136ae8798a6b0e1291788
Reviewed-on: https://go-review.googlesource.com/c/go/+/326790
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
This patch fixes a bug in the SSA back end's DWARF generation code
that determines variable locations / lifetimes.
The code in question was written to handle sequences of initial
pseudo-ops (zero width instructions such as OpPhi, OpArg, etc) in a
basic block, detecting these ops at the start of a block and then
treating the values specially when emitting ranges for the variables
in those values. The logic in this code wasn't quite correct, meaning
that a flag variable wasn't being set properly to record the presence
of a block of zero-width value-bearing ops, leading to incorrect or
missing DWARF locations for register params.
Also in this patch is a tweak to some sanity-checking code intended to
catch scheduling problems with OpArg/OpPhi etc. The checks need to
allow for the possibility of an Arg op scheduled after a spill of an
incoming register param inserted by the register allocator. Example:
b1:
v13 = ArgIntReg <int> {p1+16} [2] : CX
v14 = ArgIntReg <int> {p2+16} [5] : R8
v38 = ArgIntReg <int> {p3+16} [8] : R11
v35 = ArgIntReg <int> {p1+0} [0] : AX
v15 = StoreReg <int> v35 : .autotmp_4[int]
v40 = Arg <int> {p4} [16] : p4+16[int]
v1 = InitMem <mem>
v3 = SB <uintptr> : SB
v18 = CMPQ <flags> v14 v13
NE v18 → b3 b2 (unlikely) (18)
Here the register allocator has decided to spill v35, meaning that the
OpArg v40 is no longer going to be positioned prior to all other
non-zero-width ops; this is a valid scenario and needs to be handled
properly by the debug code.
Fixes#46425.
Change-Id: I239b3ad56a9c1b8ebf68af42e1f57308293ed7e6
Reviewed-on: https://go-review.googlesource.com/c/go/+/332269
Trust: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
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For #46867
Change-Id: I1547ebf7b91e9ddd7b67fd2f20e91391d79fa35d
Reviewed-on: https://go-review.googlesource.com/c/go/+/332250
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
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Reviewed-by: Jay Conrod <jayconrod@google.com>
copyMetadata walk-up to parent directory until the pkg become modPath.
But pkg should be slash-separated paths. It have to use path.Dir instead of
filepath.Dir.
Fixes#46867
Change-Id: I44cf1429fe52379a7415b94cc30ae3275cc430e8
Reviewed-on: https://go-review.googlesource.com/c/go/+/330149
Reviewed-by: Bryan C. Mills <bcmills@google.com>
Trust: Bryan C. Mills <bcmills@google.com>
Trust: Alexander Rakoczy <alex@golang.org>
Trust: Carlos Amedee <carlos@golang.org>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
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On darwin, under load, it appears that the system occasionally
deletes the temp dir mid-test. Don't fail the test when that happens.
It would be nice to fix this in a deeper way.
See golang.org/cl/332009 for some discussion.
In the meantime, this will at least stop the flakiness.
Updates #37910
Change-Id: I6669e466fed9abda4a87ca88345c04cd7986b41e
Reviewed-on: https://go-review.googlesource.com/c/go/+/332009
Trust: Josh Bleecher Snyder <josharian@gmail.com>
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For #46557Fixes#46991
Change-Id: Ic88ebaa13d3edf904657dc19ada4fd4ff7f44a8f
Reviewed-on: https://go-review.googlesource.com/c/go/+/332010
Trust: Ian Lance Taylor <iant@golang.org>
Trust: Josh Bleecher Snyder <josharian@gmail.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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The IsNotExist function is deprecated; change package example to avoid
it and use the recommended way instead.
Fixes#46976
Change-Id: I3c301d0a89b6bda42184df314ba8418062ca39ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/331692
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
These types already implemented the Image interface. They should also
implement the RGBA64Image interface (new in Go 1.17)
Updates #44808
Change-Id: I9a2b13e305997088ae874efb95ad9e1648f94812
Reviewed-on: https://go-review.googlesource.com/c/go/+/331570
Trust: Nigel Tao <nigeltao@golang.org>
Run-TryBot: Nigel Tao <nigeltao@golang.org>
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If a certificate contains an AuthorityKeyIdentifier extension that
lacks the keyIdentifier field, but contains the authorityCertIssuer
and/or the authorityCertSerialNumber fields, don't return an error and
continue parsing.
Fixes#46854
Change-Id: I82739b415441f639a722755cc1f449d73078adfc
Reviewed-on: https://go-review.googlesource.com/c/go/+/331689
Trust: Roland Shoemaker <roland@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
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Reviewed-by: Filippo Valsorda <filippo@golang.org>
TestCVE202133195 fails in testing LookupSRV if /etc/resolv.conf sets the option
'ndots' larger than the number of dots in the domain name under query.
Fix the issue by making the input domain name in test codes 'rooted' to skip search
list qualifying.
Fixes#46955
Change-Id: I1909fa7e54e9c9af57623e57cafc905729ff99fa
Reviewed-on: https://go-review.googlesource.com/c/go/+/330842
Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
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Trust: Dmitri Shuralyov <dmitshur@golang.org>
Change-Id: I0c2d26d6ede1452008992efbea7392162da65014
Reviewed-on: https://go-review.googlesource.com/c/go/+/331651
Reviewed-by: Robert Griesemer <gri@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
CL 255241 made error message involving variadic calls clearer. To do it,
we added a check that the type of variadic argument must be a slice.
That's why the compiler crashes for invalid variadic argument type.
Instead, we can just omit the details error message, and report not
enough arguments error, which matches the behavior of go/types and types2.
Fixes#46957
Change-Id: I638d7e8f031f0ee344d5d802104fd93a60aae00a
Reviewed-on: https://go-review.googlesource.com/c/go/+/331569
Trust: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Run-TryBot: Cuong Manh Le <cuong.manhle.vn@gmail.com>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
For arm64 CMP, ADD and other similar extended register instructions,
if there is no extension, the default extion is LSL<<0, but the default
encoding value (the value of 'option' field) of 32-bit instruction and
64-bit instruction is different, 32-bit is 2 and 64-bit is 3. But the
current assembler incorrectly encodes the value of 32-bit instruction
to 3. This CL fixes this error.
Change-Id: I0e09af2c9c5047a4ed2db7d1183290283db9c31c
Reviewed-on: https://go-review.googlesource.com/c/go/+/329749
Reviewed-by: eric fang <eric.fang@arm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: eric fang <eric.fang@arm.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
This CL removes the unconditional OCHECKNIL check added in
walkUnsafeSlice by instead passing it as a pointer to
runtime.unsafeslice, and hiding the check behind a `len == 0` check.
While here, this CL also implements checkptr functionality for
unsafe.Slice and disallows use of unsafe.Slice with //go:notinheap
types.
Updates #46742.
Change-Id: I743a445ac124304a4d7322a7fe089c4a21b9a655
Reviewed-on: https://go-review.googlesource.com/c/go/+/331070
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Change-Id: Ieff0065cbd81e045594ce12e10338b0666816d70
GitHub-Last-Rev: d842f5cb3e
GitHub-Pull-Request: golang/go#46949
Reviewed-on: https://go-review.googlesource.com/c/go/+/331309
Trust: Keith Randall <khr@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
This CL adds GOEXPERIMENT to `go env` output, and also makes it
configurable via `GOENV`. Thanks to Baokun Lee's CL 304350 for the
test and initial work on this.
Fixes#45226.
Change-Id: Ie7f92a8a503b6a2a4df3f6598f0b2bf2915e2e7d
Reviewed-on: https://go-review.googlesource.com/c/go/+/328751
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Trust: Bryan C. Mills <bcmills@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
This CL refactors code a little to make it easier to add GOEXPERIMENT
support in the future.
Change-Id: I87903056f7863049e58be72047b2b8a60a213baf
Reviewed-on: https://go-review.googlesource.com/c/go/+/329654
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
Trust: Matthew Dempsky <mdempsky@google.com>
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the test case is still using gcc when CGO is disabled.
Change-Id: I2d255bfaeb92816c8343ab72fd7984b6632d421d
GitHub-Last-Rev: de14748bd5
GitHub-Pull-Request: golang/go#46120
Reviewed-on: https://go-review.googlesource.com/c/go/+/319169
Reviewed-by: Cherry Mui <cherryyz@google.com>
Run-TryBot: Cherry Mui <cherryyz@google.com>
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Trust: Dmitri Shuralyov <dmitshur@golang.org>
Change-Id: I303edc9dfbf4185b5b461b121ab504f6ed9f8630
Reviewed-on: https://go-review.googlesource.com/c/go/+/330839
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
This CL extracts out a ParseGOEXPERIMENT helper function that parses
GOOS/GOARCH/GOEXPERIMENT values and returns active and baseline
experiment flag sets and an error value, without affecting any global
state. This will be used in the subsequent CL for 'go env' support for
GOEXPERIMENT to validate configuration changes.
The existing package initialization for Experiment and
experimentBaseline and also UpdateExperiments are updated to use it as
well.
Change-Id: Ic2ed3fd36d2a6f7f3d8172fccb865e02505c0052
Reviewed-on: https://go-review.googlesource.com/c/go/+/331109
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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Trust: Matthew Dempsky <mdempsky@google.com>
All other test files in the runtime/race package have race build
tag, except syso_test.go. The test is only relevant if the race
detector is supported. So apply the build tag.
Fixes#46931.
Change-Id: Icdb94214d3821b4ccf61133412ef39b4d7cc7691
Reviewed-on: https://go-review.googlesource.com/c/go/+/331050
Trust: Cherry Mui <cherryyz@google.com>
Reviewed-by: Elias Naur <mail@eliasnaur.com>
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TestCheck/issues.src was failing after running
rm -r $(go env GOROOT)/pkg/*/cmd
as the builders do when building binary releases.
For users who write programs that depend on go/types, it should be
reasonable for end users to run the tests for go/types as part of 'go
test all', and those tests should pass even if they installed Go from
a binary release.
The test case in issues.src was importing cmd/compile/internal/syntax
in order to check the reported package name.
I tried to fix the problem by having the test import from source
instead of from export data. Unfortunately, that changed the behavior
under test: the go/types.Package.Imports reports (and is documented to
report) a different set of imported packages when loading from source
as compared to when loading from export data.
For this particular test, after CL 313035 that difference resulted in
go/types treating the "syntax" name as ambiguous when importing from
source, because a transitive dependency on "regexp/syntax" is found
when loading from source but omitted when loading from export data.
The simple fix to make the package unambiguous again is to adapt the
test to import regexp/syntax directly. That not only makes the package
unambiguous with all importers, but also avoids depending on a
cmd-internal package that cannot be loaded from export data in binary
distributions of the Go toolchain.
For #43232
Change-Id: Iba45a680ea20d26daa86ac538fd8f1938e8b73ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/330431
Trust: Bryan C. Mills <bcmills@google.com>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
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Reviewed-by: Robert Findley <rfindley@google.com>
TestStdlib was failing after running
rm -r $(go env GOROOT)/pkg/*/cmd
as the builders do when building binary releases.¹
For users who write programs that depend on go/types, it should be
reasonable to run the tests for go/types as part of 'go test all', and
those tests should pass even if they installed Go from a binary
release.
I had originally drafted this as a fallback to import from source only
if the affected packages can't be imported by the default export-data
importer. Unfortunately, I realized that we don't currently have a
builder that tests the actual release (#46900), so it is quite likely
that the fallback path would bit-rot and produce unexpected test
regressions.
So instead, we now unconditionally import from source in TestStdlib.
That makes the test substantially slower (~15s instead of ~5s on my
workstation), but with less risk of regression, and TestStdlib is
skipped in short mode already so short-mode test time is unaffected.
If we change the builders to test the actual release configuration, we
can consider restoring the faster path when export data is available.
¹df58bbac08/cmd/release/release.go (L533-L545)
For #43232
Change-Id: I764ec56926c104053bb2ef23cf258c8f0f773290
Reviewed-on: https://go-review.googlesource.com/c/go/+/330252
Trust: Bryan C. Mills <bcmills@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Bryan C. Mills <bcmills@google.com>
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Reviewed-by: Robert Griesemer <gri@golang.org>
ncgocall was stored per M, runtime.NumCgoCall lost the counter when a M die.
Fixes#46789
Change-Id: I85831fbb2713f4c30d1800d07e1f47aa0031970e
GitHub-Last-Rev: cbc15fa870
GitHub-Pull-Request: golang/go#46842
Reviewed-on: https://go-review.googlesource.com/c/go/+/329729
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Trust: Alexander Rakoczy <alex@golang.org>
CL 313035 had a bug, initializing pkgPathMap by walking the imported
package being considered rather than check.pkg.
Fix this, and enhance our tests to exercise this bug as well as other
edge cases.
Also fix error assertions in issues.src to not use quotation marks
inside the error regexp. The check tests only matched the error regexp
up to the first quotation mark.
Fixes#46905
Change-Id: I6aa8eae4bec6495006a5c03fc063db0d66b44cd6
Reviewed-on: https://go-review.googlesource.com/c/go/+/330629
Trust: Robert Findley <rfindley@google.com>
Trust: Robert Griesemer <gri@golang.org>
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Change-Id: Ie26b9060630e2e774ac23d8492eaaf785bfca6b7
Reviewed-on: https://go-review.googlesource.com/c/go/+/330709
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Trust: Matthew Dempsky <mdempsky@google.com>
In Go 1.12, we added a heuristic to 'go mod tidy' to resolve packages
by adding replaced-but-not-required modules before falling back to
searching for modules from the network. Unfortunately, that heuristic
fails when the replaced version is already lower than the selected
version: adding such a module to the build list doesn't change the
selected version of that module, and so it doesn't make progress
toward resolving the missing package.
Fixes#46659
Change-Id: I75e2387d5290e769f6b0fa1231dcc4605db68597
Reviewed-on: https://go-review.googlesource.com/c/go/+/330432
Trust: Bryan C. Mills <bcmills@google.com>
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Reviewed-by: Jay Conrod <jayconrod@google.com>
The helper function claims that dialing a closed port should be
"nearly instantaneous", but that is empirically not the case on
OpenBSD or Windows. The tests do not appear to be particularly
sensitive to the exact upper bound otherwise, so let's just
remove the arbitrary latency assumption.
Fixes#46884
Change-Id: If00c9fdc3063da6aaf60d365d4a2ee2c94dc6df1
Reviewed-on: https://go-review.googlesource.com/c/go/+/330250
Trust: Bryan C. Mills <bcmills@google.com>
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Fixes#46883
Updates CL 267017
Change-Id: I15c307bfb0aaa2877a148d32527681f79df1a650
Reviewed-on: https://go-review.googlesource.com/c/go/+/330289
Reviewed-by: Kevin Burke <kev@inburke.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Trust: Emmanuel Odeke <emmanuel@orijtech.com>
When we are looking for a dependency cycle involving a specific
package, we need to keep track of visited packages in order to avoid
repeatedly traversing a cycle that does not involve that package.
If we're keeping track of all visited packages anyway, we're already
spending O(N) memory on the traversal, so we may as well use
breadth-first search. That not only keeps the bookkeeping simple, but
also guarantees that we will find a shortest path (rather than a
completely arbitrary one).
Fixes#45863
Change-Id: I810c7337857e42dcb83630abbdea75021554be45
Reviewed-on: https://go-review.googlesource.com/c/go/+/330430
Trust: Bryan C. Mills <bcmills@google.com>
Reviewed-by: Jay Conrod <jayconrod@google.com>
The real net code uses subtle heuristics to transform a domain name
to its absolute form. Since lookupPTR isn't checking that
transformation specifically, it should use the real code instead of
using a different heuristic.
Fixes#46882
Change-Id: I503357e0f62059c37c359cd54b44d343c7d5ab2a
Reviewed-on: https://go-review.googlesource.com/c/go/+/330249
Trust: Bryan C. Mills <bcmills@google.com>
Trust: Alex Brainman <alex.brainman@gmail.com>
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Reviewed-by: Ian Lance Taylor <iant@golang.org>
The test successfully runs on currently supported versions (6.8 and
6.9) of openbsd.
Fixes#25877
Change-Id: I2694f08c5596b486453c2ac829f17b8bc455f828
Reviewed-on: https://go-review.googlesource.com/c/go/+/329732
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Trust: Tobias Klauser <tobias.klauser@gmail.com>
The build.Context ToolTags value is set based on the set of enabled
experiments, which in turn depends on GOARCH. Before this CL the set
of experiments was being set based on GOARCH in the environment.
That is normally fine, but fails with cmd/go when somebody has run
"go env -w GOARCH=val"; in that case cmd/go changes its GOARCH value
after initialization. The new GOARCH value was affect the set of
enabled experiments, which can affect the ToolTags value. With this
CL, we update ToolTags in cmd/go based on the GOARCH value it is using.
This is a pretty ugly fix. We should do something cleaner for 1.18.
Fixes#46815
Change-Id: Ie9416781a168248813c3da8afdc257acdd3fef7e
Reviewed-on: https://go-review.googlesource.com/c/go/+/329930
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Reviewed-by: Matthew Dempsky <mdempsky@google.com>
