This reverts CL 581395, commit 2f5b420fb5.
It breaks a linkname from github.com/ugorji/go/codec.
For #67401.
A followup CL will document this dependence.
Change-Id: I66d6c39c03e769ab829ca4c3f4f61277b93380d3
Reviewed-on: https://go-review.googlesource.com/c/go/+/587216
TryBot-Bypass: Russ Cox <rsc@golang.org>
Auto-Submit: Russ Cox <rsc@golang.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
The following counters are added:
(* means we will record the actual value for the counter, but of course
the config will limit us to collecting preknown values)
go/mode:{gopath,workspace,module}
go/platform/{host,target}/{goos,goarch}:*
go/platform/target/{
go386,goamd64,goarm,goarm64,gomips,goppc64,goriscv64,gowasm}:*
For windows and unix:
go/platform/host/*/version:*
go/platform/host/*/major-version:*-*
For windows:
go/platform/host/windows/build:*
Change-Id: I3c865afede2382bae103e5b4b9d1aa6b20c123df
Reviewed-on: https://go-review.googlesource.com/c/go/+/587115
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Reviewed-by: Sam Thanawalla <samthanawalla@google.com>
Auto-Submit: Michael Matloob <matloob@golang.org>
Reviewed-by: Robert Findley <rfindley@google.com>
This looks like a oversight in CL 416354.
Fixes#67571Fixes#57461
Change-Id: I564c008989fecf84b437e123d27121ac907642fa
GitHub-Last-Rev: fec88bbf39
GitHub-Pull-Request: golang/go#67576
Reviewed-on: https://go-review.googlesource.com/c/go/+/587455
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
As of https://go.dev/cl/586796, the runtime/metrics view of internal
mutex contention is sampled at 1 per gTrackingPeriod, rather than either
1 (immediately prior to CL 586796) or the more frequent of
gTrackingPeriod or the mutex profiling rate (Go 1.22). Thus, we no
longer have a real lower bound on the amount of contention that
runtime/metrics will report. Relax the test's expectations again.
For #64253
Change-Id: I94e1d92348a03599a819ec8ac785a0eb3c1ddd73
Reviewed-on: https://go-review.googlesource.com/c/go/+/587515
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Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
Preserving an ordering wherein spans are always named before their
constituents makes parsing much more straightforward.
Change-Id: Ida8764801a6c516d672ba343e4ce01b66ce9b427
Reviewed-on: https://go-review.googlesource.com/c/go/+/586999
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Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
They were still referencing the old internal/trace/v2 packages, and
gotraceeventstats had an extra layer of cmd directory (not sure why,
maybe it was always like that).
Change-Id: Ieba48074ff36ea86c467168568751177d80db31d
Reviewed-on: https://go-review.googlesource.com/c/go/+/586998
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Reviewed-by: Michael Pratt <mpratt@google.com>
Auto-Submit: Michael Knyszek <mknyszek@google.com>
Currently the traceallocfree experiment is missing info in the trace for
interpeting the produced events. Most notably, the base heap address is
missing. While not technically necessary, it is useful for getting an
accurate picture of the program's memory layout, and will be useful for
future trace experiments. Since we want to emit a batch for this, we
should also emit a batch for all the alignment info that's used to
compress the addresses (IDs) produced for the alloc/free events.
This CL distinguishes the different formats of the experimental batches
(note that there's already batches containing type information in this
experiment) by putting a byte at the beginning of each experimental
batch indicating its format.
Change-Id: Ifc4e77a23458713b7d95e0dfa056a29e1629ccd7
Reviewed-on: https://go-review.googlesource.com/c/go/+/586997
Auto-Submit: Michael Knyszek <mknyszek@google.com>
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Reviewed-by: Michael Pratt <mpratt@google.com>
The -diff flag causes tidy not to modify the files but instead print the
necessary changes as a unified diff. It exits with a non-zero code
if updates are needed.
Fixes: #27005
Cq-Include-Trybots: luci.golang.try:gotip-linux-amd64-longtest,gotip-windows-amd64-longtest
Change-Id: Ie239367f2fc73ecb55ec2ce76442293635c1b47d
Reviewed-on: https://go-review.googlesource.com/c/go/+/585401
Reviewed-by: Michael Matloob <matloob@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This allows more effective conversion of rotate and mask opcodes
into their CC equivalents, while simplifying the first lowering
pass.
This was removed before the latelower pass was introduced to fold
more cases of compare against zero. Add ANDconst to push the
conversion of ANDconst to ANDCCconst into latelower with the other
CC opcodes.
This also requires introducing RLDICLCC to prevent regressions
when ANDconst is converted to RLDICL then to RLDICLCC and back
to ANDCCconst when possible.
Change-Id: I9e5f9c99fbefa334db18c6c152c5f967f3ff2590
Reviewed-on: https://go-review.googlesource.com/c/go/+/586160
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Reviewed-by: Carlos Amedee <carlos@golang.org>
When unquoting of an ERROR or ERRORx pattern fails, say so instead of
simply printing "syntax error".
Change-Id: I586dffa86ca80f5b40a5cbe16a7005cc1f7862f8
Reviewed-on: https://go-review.googlesource.com/c/go/+/586958
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Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Fixes regression from Go 1.22.
For #67547.
Change-Id: Id0d07d6b24e1eab6ed1c7476d9d9b82d28aee80a
Reviewed-on: https://go-review.googlesource.com/c/go/+/587161
Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Reviewed-by: Robert Findley <rfindley@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
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For range-over-function, the compiler generates a hidden closure
for the range body, and call the iterator function with the hidden
closure as the yield parameter. For debuggers, if it stops inside
the range body (hidden closure), it needs some way to find the
outer function (that contains the range statement), to access the
variables that are in scope. To do this, we keep the closure
pointer live on stack with a special name ".closureptr", so the
debugger can look for this name and find the closure pointer. In
the usual case, the closure is a struct defined in the outer
frame, so following the pointer it will find the frame. We do this
in SSA generation, so if the range func is inlined and there is no
actual closure, we don't generate any extra code. In the case that
there is an actual closure, it's just a single store to the stack,
so the overhead is still small.
TODO: add some test
Change-Id: I0e8219b895733f8943a13c67b03ca776bdc02bc9
Reviewed-on: https://go-review.googlesource.com/c/go/+/586975
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Reviewed-by: David Chase <drchase@google.com>
The current implementation doesn't handle s.freeindex at all, which
means it'll skip a whole bunch of recently-made allocations, because the
span may have not been swept yet.
Change-Id: I8c5e360f5927ffe7e9abb448b352a59875e31b02
Reviewed-on: https://go-review.googlesource.com/c/go/+/586996
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Auto-Submit: Michael Knyszek <mknyszek@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
Fixes regression from Go 1.22.
Fixes#67540.
For #67547.
Change-Id: I61f642970c6a9bd8567654bb5ecf645ae77b3bcc
Reviewed-on: https://go-review.googlesource.com/c/go/+/587159
Reviewed-by: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
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Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Go release notes always start out as a draft with a clear notice.
That notice is removed when the final release (go1.N.0) is made.
For example, the last time was in CL 562255.
Add this to the Go 1.23 draft and to the future fragment template.
Also switch to the main pkg.go.dev instance and use a relative issue
link in 3-tools.md while here.
For #64169.
For #65614.
Change-Id: I16bc0fa8a3a43ee7a9edd7fa253999041f1892e2
Reviewed-on: https://go-review.googlesource.com/c/go/+/587415
Reviewed-by: Jonathan Amsterdam <jba@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
TryBot-Bypass: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Cleanup all remaining trivial compares against $0 in ppc64x assembly.
In math, SRD ...,Rx; CMP Rx, $0 is further simplified to SRDCC.
Change-Id: Ia2bc204953e32f08ee142bfd06a91965f30f99b6
Reviewed-on: https://go-review.googlesource.com/c/go/+/587016
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
Run-TryBot: Paul Murphy <murp@ibm.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
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Tests of the mutex profile focus on sync.Mutex, which is easy to
control. But since those tests still use the runtime, and contention on
internal runtime.mutex values is now also part of the mutex profile, we
have to filter out those samples before examining the profile. Otherwise
the test may be confused by stray contention on sched.lock (or other
runtime-internal locks) as a natural consequence of using goroutines.
Fixes#67563
Change-Id: I066a24674d8b719dbeca4a5c0f76b53bc07498c1
Reviewed-on: https://go-review.googlesource.com/c/go/+/586957
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Auto-Submit: Rhys Hiltner <rhys.hiltner@gmail.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
We no longer do anything with this GODEBUG.
Fixes#66217
Change-Id: I998797b6a573013f5b9c8ded835acae572327d18
Reviewed-on: https://go-review.googlesource.com/c/go/+/584117
Reviewed-by: Cherry Mui <cherryyz@google.com>
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Auto-Submit: Roland Shoemaker <roland@golang.org>
Was this strictly necessary? No.
Did this deserve its own CL? Maybe not.
But I have a personal vendetta against NPN.
Change-Id: Ide1ad1092259dc23e3ead5c1d5269fc5cb2793d7
Reviewed-on: https://go-review.googlesource.com/c/go/+/587275
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Add synchronous management of stored sessions to QUICConn.
This adds QUICStoreSession and QUICResumeSession events,
permitting a QUIC implementation to handle session resumption
as part of its regular event loop processing.
Fixes#63691
Change-Id: I9fe16207cc1986eac084869675bc36e227cbf3f0
Reviewed-on: https://go-review.googlesource.com/c/go/+/536935
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Reviewed-by: Marten Seemann <martenseemann@gmail.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
There is only one trusted certificate I could find in the web pki which
has a negative serial number. Removing this exception seems reasonable.
Updates #65085
Change-Id: I55435b3d75479dcb41d523383e4ff7894a1496ad
Reviewed-on: https://go-review.googlesource.com/c/go/+/562343
Auto-Submit: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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Reviewed-by: Damien Neil <dneil@google.com>
Also simplify links.
Change-Id: I412d6c914d05bd093df46926a4f1742d664fefea
Reviewed-on: https://go-review.googlesource.com/c/go/+/587355
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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Reviewed-by: Jonathan Amsterdam <jba@google.com>
Currently a HashTrieMap has a method called Enumerate whose method
closure is an iter.Seq2, but the current convention is to name the
method All and return an iter.Seq2. This is an easy transformation, so
do it now.
Change-Id: I323e505008b7df3a9e20fe8c223b281a8c290006
Reviewed-on: https://go-review.googlesource.com/c/go/+/586995
Reviewed-by: Michael Pratt <mpratt@google.com>
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Forced the testConfig CurvePreferences to exclude X25519Kyber768Draft00
to avoid bloating the transcripts, but I manually tested it and the
tests all update and pass successfully, causing 7436 insertions(+), 3251
deletions(-).
Fixes#67061
Change-Id: If6f13bca561835777ab0889a490487b7c2366c3c
Reviewed-on: https://go-review.googlesource.com/c/go/+/586656
Auto-Submit: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
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Mutex contention measurements work with two clocks: nanotime for use in
runtime/metrics, and cputicks for the runtime/pprof profile. They're
subject to different sampling rates: the runtime/metrics view is always
enabled, but the profile is adjustable and is turned off by default.
They have different levels of overhead: it can take as little as one
instruction to read cputicks while nanotime calls are more elaborate
(although some platforms implement cputicks as a nanotime call). The use
of the timestamps is also different: the profile's view needs to attach
the delay in some Ms' lock2 calls to another M's unlock2 call stack, but
the metric's view is only an int64.
Treat them differently. Don't bother threading the nanotime clock
through to the unlock2 call, measure and report it directly within
lock2. Sample nanotime at a constant gTrackingPeriod.
Don't consult any clocks unless the mutex is actually contended.
Continue liberal use of cputicks for now.
For #66999
Change-Id: I1c2085ea0e695bfa90c30fadedc99ced9eb1f69e
Reviewed-on: https://go-review.googlesource.com/c/go/+/586796
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Reviewed-by: Carlos Amedee <carlos@golang.org>
IncNonDefault panics if Value was not called. That's too much DoS risk
in crypto/tls, when the call to Value is distant from the call to
IncNonDefault (see #65991). Value is cheap, though, so we can just call
it before each isolated IncNonDefault.
Change-Id: I6dbed345381e60e029b0a5ef2232e846aa089736
Reviewed-on: https://go-review.googlesource.com/c/go/+/586755
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
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I initially thought the logic was broken, but writing the test I
realized it was actually very clever (derogative). It was relying on the
outer loop continuing after a supported match without a key share,
allowing a later key share to override it (but not a later supported
match because of the "if selectedGroup != 0 { continue }").
Replaced the clever loop with two hopefully more understandable loops,
and added a test (which was already passing).
We were however not checking that the selected group is in the supported
list if we found it in key shares first. (This was only a MAY.) Fixed.
Fixes#65686
Change-Id: I09ea44f90167ffa36809deb78255ed039a217b6d
Reviewed-on: https://go-review.googlesource.com/c/go/+/586655
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Auto-Submit: Filippo Valsorda <filippo@golang.org>
Fixes#67537.
Change-Id: Ic567f7d19d621a17d2a00aba5b9f927001195ea9
GitHub-Last-Rev: 9eec790ab6
GitHub-Pull-Request: golang/go#67539
Reviewed-on: https://go-review.googlesource.com/c/go/+/587015
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Change-Id: Id63ede5d50a8b287bc0b96382f9f3ee6c2e0b834
Reviewed-on: https://go-review.googlesource.com/c/go/+/586856
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
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This is just looking at a command-line flag. Look directly.
For #67401.
Change-Id: I7a1c3fc2d9cc85e5ffc5731444bf6db87abf6901
Reviewed-on: https://go-review.googlesource.com/c/go/+/585916
Reviewed-by: Than McIntosh <thanm@google.com>
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Reviewed-by: Alan Donovan <adonovan@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Move code so that basic imports work instead
of //go:linkname for metadata lists.
For #67401.
Change-Id: Id02075570befc45a9426559aad2137ab540928b2
Reviewed-on: https://go-review.googlesource.com/c/go/+/585915
Reviewed-by: Than McIntosh <thanm@google.com>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Centralizing some repetitive code, which would have prevented #45990.
This also fixes the deprecated Certificate.CreateCRL for RSA-PSS, not
that anyone cared, probably.
This has two other minor observable behavior changes: MD2 is now treated
as a completely unknown algorithm (why did we even have that!? removing
lets us treat hash == 0 as always meaning no prehash); and we now do the
signature verification self-check for all signing operations.
Change-Id: I3b34fe0c3b6eb6181d2145b0704834225cd45a27
Reviewed-on: https://go-review.googlesource.com/c/go/+/586015
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
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Just a cleanup.
Change-Id: Ibeb2c7d447c793086280e612fe5f0f7eeb863f71
Reviewed-on: https://go-review.googlesource.com/c/go/+/582875
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Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
The AM* atomic access instruction performs a sequence of “read-modify-write”
operations on a memory cell atomically. Specifically, it retrieves the old
value at the specified address in memory and writes it to the general register
rd, performs some simple operations on the old value in memory and the value
in the general register rk, and then write the result of the operation back
to the memory address pointed to by general register rj.
Go asm syntax:
AM{SWAP/ADD/AND/OR/XOR/MAX/MIN}[DB]{W/V} RK, (RJ), RD
AM{MAX/MIN}[DB]{WU/VU} RK, (RJ), RD
Equivalent platform assembler syntax:
am{swap/add/and/or/xor/max/min}[_db].{w/d} rd, rk, rj
am{max/min}[_db].{wu/du} rd, rk, rj
Ref: https://loongson.github.io/LoongArch-Documentation/LoongArch-Vol1-EN.html
Change-Id: I99ea4553ae731675180d63691c19ef334e7e7817
Reviewed-on: https://go-review.googlesource.com/c/go/+/481577
Reviewed-by: Meidan Li <limeidan@loongson.cn>
Reviewed-by: sophie zhao <zhaoxiaolin@loongson.cn>
Reviewed-by: Mauri de Souza Meneguzzo <mauri870@gmail.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Qiqi Huang <huangqiqi@loongson.cn>
Reviewed-by: WANG Xuerui <git@xen0n.name>
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Reviewed-by: Cherry Mui <cherryyz@google.com>
Fixes regression from Go 1.22.
For #67547.
Change-Id: I012681c7b8b01b02018b313dd3804690bc7aeed1
Reviewed-on: https://go-review.googlesource.com/c/go/+/587158
Reviewed-by: Robert Griesemer <gri@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Findley <rfindley@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Fixes regression from Go 1.22.
For #67547.
Change-Id: Idd319b9d2a73c824caa2c821df0e2fcd4f58cb08
Reviewed-on: https://go-review.googlesource.com/c/go/+/587176
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
For #67547.
Change-Id: I1b2118a311dce906327ae6e29e582da539c60b2b
Reviewed-on: https://go-review.googlesource.com/c/go/+/587157
Auto-Submit: Robert Griesemer <gri@google.com>
Reviewed-by: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Robert Findley <rfindley@google.com>
This change adds an Unalias call in applyTypeFunc and arrayPtrDeref.
At the moment this doesn't change anything or fix any bugs because
of the way these two functions are invoked, but that could change
in the future.
Also, manually reviewed all type assertions to Type types.
Excluding assertions to type parameters, no obvious issues
were found except for #67540 for which a separate fix is pending.
There are potential issues with assertions type parameters
which will be addressed in a follow-up CL.
For #67547.
Change-Id: I312268dc5e104f95b68f115f00aec3ec4c82e41f
Reviewed-on: https://go-review.googlesource.com/c/go/+/587156
Reviewed-by: Robert Findley <rfindley@google.com>
Auto-Submit: Robert Griesemer <gri@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Robert Griesemer <gri@google.com>
Disable three 100-continue tests that aren't exercising the
intended behavior because they don't set ExpectContinueTimeout.
The tests are flaky right now; setting ExpectContinueTimeout
makes them consistently fail.
Set ExpectContinueTimeout and t.Skip the tests for now.
Fixes#67382
For #67555
Change-Id: I459a19a927e14af03881e89c73d20c93cf0da43e
Reviewed-on: https://go-review.googlesource.com/c/go/+/587155
Auto-Submit: Damien Neil <dneil@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Modify rangefunc #next protocol to make it more robust
Extra-terrible nests of rangefunc iterators caused the
prior implementation to misbehave non-locally (in outer loops).
Add more rangefunc exit flag tests, parallel and tricky
This tests the assertion that a rangefunc iterator running
in parallel can trigger the race detector if any of the
parallel goroutines attempts an early exit. It also
verifies that if everything else is carefully written,
that it does NOT trigger the race detector if all the
parts run time completion.
Another test tries to rerun a yield function within a loop,
so that any per-line shared checking would be fooled.
Added all the use-of-body/yield-function checking.
These checks handle pathological cases that would cause
rangefunc for loops to behave in surprising ways (compared
to "regular" for loops). For example, a rangefunc iterator
might defer-recover a panic thrown in the syntactic body
of a loop; this notices the fault and panics with an
explanation
Modified closure naming to ID rangefunc bodies
Add a "-range<N>" suffix to the name of any closure generated for
a rangefunc loop body, as provided in Alessandro Arzilli's CL
(which is merged into this one).
Fix return values for panicky range functions
This removes the delayed implementation of "return x" by
ensuring that return values (in rangefunc-return-containing
functions) always have names and translating the "return x"
into "#rv1 = x" where #rv1 is the synthesized name of the
first result.
Updates #61405.
Change-Id: I933299ecce04ceabcf1c0c2de8e610b2ecd1cfd8
Reviewed-on: https://go-review.googlesource.com/c/go/+/584596
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Tim King <taking@google.com>
unsafe.Sizeof() can return a different value than
reflect.TypeOf(x).Size() for a variable of an interface static type.
This change points out the difference in behavior, by emphasizing that
unsafe.Sizeof() only returns the size of the interface value itself,
rather than the size of the value stored in the interface.
Fixes#67465.
Change-Id: Ia6a809debb7970be171b0fc186209e5d161784e7
Reviewed-on: https://go-review.googlesource.com/c/go/+/586275
Auto-Submit: Ian Lance Taylor <iant@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Carlos Amedee <carlos@golang.org>
Reviewed-by: Felix Geisendörfer <felix.geisendoerfer@datadoghq.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Commit-Queue: Ian Lance Taylor <iant@golang.org>
Move code to internal/coverage/cfile, making it possible to
access directly from testing/internal/testdeps, so that we can
avoid needing //go:linkname hacks.
For #67401.
Change-Id: I10b23a9970164afd2165e718ef3b2d9e86783883
Reviewed-on: https://go-review.googlesource.com/c/go/+/585820
Auto-Submit: Russ Cox <rsc@golang.org>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
