WithContext makes a shallow copy of a Request, and Clone makes a
deep copy. Both set the context of the new request. The distinction
between the two is clear, and it doesn't seem useful or necessary
to say that "it's rare to need WithContext".
Also update a couple locations that mention WithContext to mention
Clone as well.
Fixes#53413.
Change-Id: I89e6ddebd7d5ca6573e522fe48cd7f50cc645cdd
Reviewed-on: https://go-review.googlesource.com/c/go/+/412778
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
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Run-TryBot: Damien Neil <dneil@google.com>
When accessing (*Checker).implements from types.AssignableTo or
types.ComparableTo, we don't need to build error strings -- they won't
be used.
This string manipulation showed up as a hot spot in gopls completion,
which checks a lot of type predicates when searching for candidate
completions.
This CL yields the following results for gopls' completion benchmarks:
StructCompletion-8 24.7ms ±34% 26.0ms ±17% ~ (p=0.447 n=10+9)
ImportCompletion-8 1.41ms ± 2% 1.45ms ± 4% +2.42% (p=0.027 n=8+9)
SliceCompletion-8 27.0ms ±18% 25.2ms ± 3% -6.67% (p=0.008 n=9+8)
FuncDeepCompletion-8 57.6ms ± 4% 22.4ms ± 4% -61.18% (p=0.000 n=8+9)
CompletionFollowingEdit-8 157ms ±13% 103ms ±15% -34.70% (p=0.000 n=10+10)
Notably, deep completion (which searches many candidates) is almost 3x
faster after this change.
Fixes#54172
Change-Id: If8303a411aed3a20bd91f7b61e346d703084166c
Reviewed-on: https://go-review.googlesource.com/c/go/+/423360
Run-TryBot: Robert Findley <rfindley@google.com>
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The new Clone function returns a copy of b[:len(b)]
for the input byte slice b.
The result may have additional unused capacity.
Clone(nil) returns nil.
Fixes#45038
Change-Id: I0469a202d77a7b491f1341c08915d07ddd1f0300
Reviewed-on: https://go-review.googlesource.com/c/go/+/359675
Run-TryBot: Martin Möhrmann <martin@golang.org>
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So far was only documented in doc/diagnostics.
Fixes: #54183
Change-Id: Iab67a1500547f30325453c614a2f2f6621dfadb3
Reviewed-on: https://go-review.googlesource.com/c/go/+/423275
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Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
The value of Expires is only checked when a value is set.
This fixes the bug that a cookie with a zero-valued Expire
was considered invalid, even though Expires is an optional
field.
Fixes#52989
Change-Id: I206c50e9b6ea2744a92c74673d589ce2aaa62670
Reviewed-on: https://go-review.googlesource.com/c/go/+/407654
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The length of slice hashedsyms is always 0, because it's not used after defined
Change-Id: Iba8e263aedfa403d5688678a1b37c2be3119eb7f
GitHub-Last-Rev: c236c4a482
GitHub-Pull-Request: golang/go#53450
Reviewed-on: https://go-review.googlesource.com/c/go/+/413234
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Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Use the helper added by CL 422038 instead of manually detecting the
noopt builder.
Change-Id: I353f1a9d5f0184d73869520eb1ae8d0bdbbe2006
Reviewed-on: https://go-review.googlesource.com/c/go/+/423855
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A few lingering references to Go 1.4 remain.
Fix them, and document the ones that should stay.
For #44505.
Fixes#54301.
Change-Id: Ieb9c0f08e4d1890ea3fdfd9c8df5493934ae7493
Reviewed-on: https://go-review.googlesource.com/c/go/+/423354
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Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Change-Id: Ie169c226e8973c8b504412cc0ac1f14abcdfdb1c
Reviewed-on: https://go-review.googlesource.com/c/go/+/423755
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Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
CL 414836 limited the check for implicit dot for method call enabled by
a type bound. However, the checking condition for ODOTMETH only is not
right. For example, for promoted method, we have a OXDOT node instead,
and we still have to check for implicit dot in this case.
However, if the base type and embedded types have the same method name,
e.g in issue #53419, typecheck.AddImplicitDots will be confused and
result in an ambigus selector.
To fix this, we ensure methods for the base type are computed, then only
do the implicit dot check if we can find a matched method.
Fixes#54348
Change-Id: Iefe84ff330830afe35c5daffd499824db108da23
Reviewed-on: https://go-review.googlesource.com/c/go/+/422274
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Reviewed-by: Keith Randall <khr@golang.org>
This saves 11,000 allocations when loading the standard library
in golang.org/x/tools/go/ssa form.
Change-Id: I8aa32b0641c1a3dde29e6ee76c760006035dd56d
Reviewed-on: https://go-review.googlesource.com/c/go/+/423934
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This CL make math.sqrt an intrinsic function, math.Sqrt is not affected
since compiler can inline it. With this change, we can remove all assembly
code for math.Sqrt that aims to speed up indirect call. The go compiler can
generate same or faster code (with regabi) for indirect call.
Benchmark on amd64:
name old time/op new time/op delta
SqrtIndirect 2.60ns ± 3% 1.03ns ± 4% -60.24% (p=0.000 n=10+10)
SqrtLatency 3.40ns ± 1% 3.32ns ± 1% -2.26% (p=0.000 n=10+8)
SqrtIndirectLatency 6.09ns ± 0% 3.31ns ± 0% -45.67% (p=0.000 n=10+10)
SqrtGoLatency 36.1ns ± 6% 34.6ns ± 1% ~ (p=0.101 n=10+10)
SqrtPrime 2.53µs ± 2% 2.55µs ± 6% ~ (p=0.398 n=9+9)
Change-Id: If4be0f242c1d9d4feca7d269fc9cd6e6066f163d
Reviewed-on: https://go-review.googlesource.com/c/go/+/421074
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addresses proposal #53084
required by sha-256 change list developed for #50543
Change-Id: I5454d746fce069a7a4993d70dc5b0a5544f8eeaf
Reviewed-on: https://go-review.googlesource.com/c/go/+/408794
Run-TryBot: Keith Randall <khr@golang.org>
Reviewed-by: Martin Möhrmann <moehrmann@google.com>
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Keith Randall <khr@google.com>
Due to the latest binutils change [1], at least for certain 32-bit
relocs in .eh_frame section, this new type of relocation record is
emitted, leading to breakage on systems with bleeding-edge toolchain
when trying to link with object(s) with such new-style relocs.
Simply treating it the same as the existing reloc types seems enough.
Fixes#54222
[1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=f09482a8747b6fd4c2d59a6a64677d3a3fe1e092
Change-Id: I876d6711d5d4a674bead37e57f9503f1622d1136
Reviewed-on: https://go-review.googlesource.com/c/go/+/420983
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Single quotes don't account for whitespace in this context, which causes
output to look like this:
$ ./make.bat
'C:\Program' is not recognized as an internal or external command,
operable program or batch file.
Building Go cmd/dist using C:\Program Files\Go. (go version =)
When it should look like this:
Building Go cmd/dist using C:\Program Files\Go. (go1.19 windows/amd64)
For #44505.
Change-Id: I71328add5c74bd2829c0e23224cfa6252395ff2c
GitHub-Last-Rev: a01fda6b52
GitHub-Pull-Request: golang/go#54270
Reviewed-on: https://go-review.googlesource.com/c/go/+/421356
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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The issue is expected to be fixed when Unified IR is enabled by default,
so adding a test to make sure thing works correctly.
Updates #53702
Change-Id: Id9d7d7ca4506103df0d10785ed5ee170d69988ba
Reviewed-on: https://go-review.googlesource.com/c/go/+/423434
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Auto-Submit: Cuong Manh Le <cuong.manhle.vn@gmail.com>
We use EDNS(0) by default. No need to fall back to netdns=cgo if we
see a explicit request for EDNS(0) in resolv.conf.
For #51153
Change-Id: I135363112e3de43ce877aad45aba71d1448068b7
Reviewed-on: https://go-review.googlesource.com/c/go/+/415579
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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The existing value for M1 is 64, which is the same as other arm64 cpus.
But the correct cacheLineSize for M1 should be 128, which can be
verified using the following command:
$ sysctl -a hw | grep cachelinesize
hw.cachelinesize: 128
Fixes#53075
Change-Id: Iaa8330010a4499b9b357c70743d55aed6ddb8588
GitHub-Last-Rev: df87eb9c50
GitHub-Pull-Request: golang/go#53076
Reviewed-on: https://go-review.googlesource.com/c/go/+/408576
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Meng Zhuo <mzh@golangcn.org>
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Change-Id: I79695e1cfda3b4cd911673f6e14dc316c451e2ed
Reviewed-on: https://go-review.googlesource.com/c/go/+/423436
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Michael Pratt <mpratt@google.com>
Extra Ms may lead to the "no consistent ordering of events possible" error when parsing trace file with cgo enabled, since:
1. The gs in the extra Ms may be in `_Gdead` status while starting trace by invoking `runtime.StartTrace`,
2. and these gs will trigger `traceEvGoSysExit` events in `runtime.exitsyscall` when invoking go functions from c,
3. then, the events of those gs are under non-consistent ordering, due to missing the previous events.
Add two events, `traceEvGoCreate` and `traceEvGoInSyscall`, in `runtime.StartTrace`, will make the trace parser happy.
Fixes#29707
Change-Id: I7cc4b80822d2c46591304a59c9da2c9fc470f1d0
GitHub-Last-Rev: 445de8eaf3
GitHub-Pull-Request: golang/go#53284
Reviewed-on: https://go-review.googlesource.com/c/go/+/411034
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The HTTP/1 server deletes multipart form tempfiles after ServeHTTP
returns, but the HTTP/2 server does not. Add a test to verify
cleanup happens in both cases, temporarily disabled for the
HTTP/2 path.
For #20253
Updates #25965
Change-Id: Ib753f2761fe73b29321d9d4337dbb5090fd193c2
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Two packages construct atomic booleans from atomic integers.
Replace these implementations with the new atomic.Bool type.
Indeed, these packages were the impetus for the new atomic.Bool
type, having demonstrated a need to access boolean values
atomically.
Change-Id: I6a0314f8e7d660984a6daf36a62ed05a0eb74b2f
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When ReverseProxy forwards a request with no User-Agent header, leave
the header in the forwarded request blank rather than inserting the
default Go HTTP clent User-Agent.
We already did this for NewSingleHostReverseProxy; generalize it to
every ReverseProxy.
Change-Id: Id81a230cb8d384acdfae190b78a4265d80720388
Reviewed-on: https://go-review.googlesource.com/c/go/+/407375
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X-Forwarded-Host contains the original request's host.
X-Forwarded-Proto contains "http" or "https", depending on whether the
original request was made on a TLS-secured connection.
Setting either header to nil in Director disables adding the header,
same as for X-Forwarded-For.
Fixes#50465.
Change-Id: If8ed1f48d83f8ea0389c53519bc7994cb53891db
Reviewed-on: https://go-review.googlesource.com/c/go/+/407414
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The current implementation ignores cookies where the
cookie name starts or ends with a space. For example,
name =value
is ignored.
I have come across pages that send cookies in this weird format.
I tested with the latest versions of Firefox, Safari and Chrome,
all of which accept cookies in this format.
To do this, I remove leading and trailing spaces from the
cookie name after cutting at '='.
Change-Id: I8fd0c37a2113b6ce75712dd43607d1ea55e86c68
GitHub-Last-Rev: 368f50fcb4
GitHub-Pull-Request: golang/go#52121
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CL 310850 dropped work re-checks on non-spinning Ms to fix#43997.
This introduced a new race condition: a non-spinning M may drop its P
and then park at the same time a spinning M attempts to wake a P to
handle some new work. The spinning M fails to find an idle P (because
the non-spinning M hasn't quite made its P idle yet), and does nothing
assuming that the system is fully loaded. This results in loss of work
conservation. In the worst case we could have a complete deadlock if
injectglist fails to wake anything just as all Ps are going idle.
sched.needspinning adds new synchronization to cover this case. If work
submission fails to find a P, it sets needspinning to indicate that a
spinning M is required. When non-spinning Ms prepare to drop their P,
they check needspinning and abort going idle to become a spinning M
instead. This addresses the race without extra spurious wakeups. In the
normal (non-racing case), an M will become spinning via the normal path
and clear the flag.
injectglist must change in addition to wakep because it is a similar
form of work submission, notably used following netpoll at a point when
we might not have a P that would guarantee the work runs.
Fixes#45867
Change-Id: Ieb623a6d4162fb8c2be7b4ff8acdebcc3a0d69a8
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This converts several unsynchronized reads (reads without holding
prof.signalLock) into atomic reads.
For #53821.
For #52912.
Change-Id: I421b96a22fbe26d699bcc21010c8a9e0f4efc276
Reviewed-on: https://go-review.googlesource.com/c/go/+/420196
Reviewed-by: Austin Clements <austin@google.com>
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I've dropped the note that sched.timeToRun is protected by sched.lock,
as it does not seem to be true.
For #53821.
Change-Id: I03f8dc6ca0bcd4ccf3ec113010a0aa39c6f7d6ef
Reviewed-on: https://go-review.googlesource.com/c/go/+/419449
Reviewed-by: Austin Clements <austin@google.com>
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This converts a few unsynchronized accesses.
For #53821.
Change-Id: Ie2728779111e3e042696f15648981c5d5a86ca6d
Reviewed-on: https://go-review.googlesource.com/c/go/+/419448
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Note that this replaces numerous unsynchronized loads throughout the
scheduler.
For #53821.
Change-Id: Ica80b04c9e8c184bfef186e549526fc3f117c387
Reviewed-on: https://go-review.googlesource.com/c/go/+/419447
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Note that this converts nmspinning from uint32 to int32 for consistency
with the other count fields in schedt.
For #53821.
Change-Id: Ia6ca7a2b476128eda3b68e9f0c7775ae66c0c744
Reviewed-on: https://go-review.googlesource.com/c/go/+/419446
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Note that this converts npidle from uint32 to int32 for consistency with
the other count fields in schedt and the type of p.id.
Note that this changes previously unsynchronized operations to
synchronized operations in:
* handoffp
* injectglist
* schedtrace
* schedEnableUser
* sync_runtime_canSpin
For #53821.
Change-Id: I36d1b3b4a28131c9d47884fade6bc44439dd6937
Reviewed-on: https://go-review.googlesource.com/c/go/+/419445
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Note that this converts ngsys from uint32 to int32 to match the other
(non-atomic) counters.
For #53821.
Change-Id: I3acbfbbd1dabc59b0ea5ddc86a97e0d0afa9f80c
Reviewed-on: https://go-review.googlesource.com/c/go/+/419444
Run-TryBot: Michael Pratt <mpratt@google.com>
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Note that this converts pollUntil from uint64 to int64, the type used by
nanotime().
For #53821.
Change-Id: Iec9ec7e09d3350552561d0708ba6ea9e8a8ae7ab
Reviewed-on: https://go-review.googlesource.com/c/go/+/419443
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Note that this changes the type from uint64 to int64, the type used by
nanotime(). It also adds an atomic load in pollWork(), which used to use
a non-atomic load.
For #53821.
Change-Id: I6173c90f20bfdc0e0a4bc3a7b1c798d1c429fff5
Reviewed-on: https://go-review.googlesource.com/c/go/+/419442
Run-TryBot: Michael Pratt <mpratt@google.com>
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We currently print these as -1, but some are technically uint64. We can
be more explicit about their irrelevance by printing 'nil' rather than
-1.
Change-Id: I267fd8830564c75032bfe9176af59047f5a90202
Reviewed-on: https://go-review.googlesource.com/c/go/+/419441
Reviewed-by: Austin Clements <austin@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Michael Pratt <mpratt@google.com>
